You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I want to change my reservation, can you please help me?

ASSISTANT: Sure, may I know your name please?

USER: My name is George Lewis.

ASSISTANT: We found a reservation in your name. Can I have your airport codes please?

USER: My airport codes are LAX and OAK.

ASSISTANT: Help me with the trip dates?

USER: My travelling dates are Apr 17 and Apr 19.

ASSISTANT: Do you have any preferences?

USER: I need a single connection flight.

ASSISTANT: We found a flight in an airline American with 1024 number having a single connection price of 100. Shall I proceed to book?

USER: Ok, please confirm the booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for you help.

ASSISTANT: Thank you for reaching us.