You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: As my manager did not approve my leave, I would like to change my recent reservation. Can you please help me out with that?

ASSISTANT: Sure, I am here to help you. May I know on whose name the ticket has been reserved formerly?

USER: Thank you for taking my request into consideration, I have reserved it on the name of Elizabeth Anderson.

ASSISTANT: I have found a reservation on your name, may I know your new airport codes please?

USER: Sure, I want to travel from SEA to JFK.

ASSISTANT: Ok, can you please provide your travelling dates?

USER: My departure is on June 07 and please book my return ticket on June 09.

ASSISTANT: Ok, do you have any specifications?

USER: I need a connecting flight for my journey, that's all my preferences.

ASSISTANT: I found a flight for you with Spirit Airlines and it costs you 100. Shall I proceed?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Your ticket has been booked with 1007 flight number.

USER: Thank you for your help in changing my reservation.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.