You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need to change my earlier reservation due to some emergency work.

ASSISTANT: Ok.

USER: Can you please help me with that?

ASSISTANT: Sure, may I know your good name for further process?

USER: I am Donald Carter.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: I have a found a reservation. Please, share your new journey dates.

USER: My new journey dates are from 03/22 to 03/24.

ASSISTANT: Kindly, mention your airport codes.

USER: LGA and IAH are my airport codes.

ASSISTANT: You have a flight with airline Southwest and flight number is 1007 with 1 connection and price is 100.

USER: Please proceed with booking.

ASSISTANT: Your reservation is done.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.