You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Ca you please help me in changing my recent reservation?

ASSISTANT: Sure, may I know your name please?

USER: Myself Catherine Young.

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

USER: My travelling airport codes are PHX and LAX.

ASSISTANT: Help me with the trip dates?

USER: My trip dates are Apr 28 and Apr 30.

ASSISTANT: Do you have any specifications to be met?

USER: I need connecting flight.

ASSISTANT: We found a flight in an airline Spirit with 1003 number having a single connection price of 100 in an economy class. Shall I proceed to book?

USER: Please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.