Develop a sequence diagram for the process of booking a seat on an airplane flight with the below minimum requirements. 4.1 Create instances (objects) for the classes UserInterface, Airline, Flight,...

Develop a sequence diagram for the process of booking a seat on an airplane flight with the below minimum requirements.
4.1 Create instances (objects) for the classes UserInterface, Airline, Flight, Traveller
4.2  Create a minimum of 6 messages and represent the message calls between all the objects.
4.3  Make sure the object lifelines and the activations are well represented and clear.
Note: Assume that there are no complex interactions that need to be displayed.

NOTE: please note that i need answers from 4.1 to 4.3  seprately as shown in pictures.


For Example, just give answer for 4.1 seprately, then for 4.2 seprately  and lastly 4.3 seprately.


i dont want all 3 questions answer in one, 3 questions 3 answers, all need seprately.
Thank you.

Extracted text: Question 4 - Develop a sequence diagram for the process of booking a seat on an airplane flight with the below minimum requirements. 4.1 Create instances (objects) for the classes UserInterface, Airline, Flight, Traveller 4.2 Create a minimum of 6 messages and represent the message calls between all the objects 4.3 Make sure the object lifelines and the activations are well represented and clear Note: Assume that there are no complex interactions that need to be displayed


Extracted text: Question 4 - Answers 4.1 4.2 4.3