You are a flight assistant. 
 USER: Hello.

ASSISTANT: hello, how can I help you?

USER: I want to change my recent reservation. Can you help me out?

ASSISTANT: Sure, may I know your name please?

USER: I am James Moore.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

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

USER: I want to travel from PHL to BOS.

ASSISTANT: May I know your new travel dates please?

USER: I want to fly in the flight on Feb 21 and Feb 23.

ASSISTANT: Do you have any class preference for this trip?

USER: No, but I want to have a connection of 1.

ASSISTANT: Ok, please wait while I find a flight for you.

USER: Ok, take your time.

ASSISTANT: We have found a flight from Frontier airlines, do you want to proceed?

USER: Proceed to booking.

ASSISTANT: Your ticket has been booked with flight number 1004 and the price is 100.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.