You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Could you help me to amend my existing reservation?

ASSISTANT: Sure, I can change your reservation right now. Before that I need to know your good name please?

USER: I am Rachel Davis.

ASSISTANT: Please wait a minute.

USER: Sure, make it fast.

ASSISTANT: We found a reservation on your name, can you please share your new airport codes?

USER: I am heading to PHX from SFO.

ASSISTANT: May I know your travel dates?

USER: My travel dates are Apr 29 and May 01.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: We found a connecting flight 1021 in United Airlines at the price of 100 with economy class. Can I proceed?

USER: Ok, proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.