You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to modify my ticket details because my trip is postponed. Can you help me in changing the ticket?

ASSISTANT: Sure, I am glad to help you. Could please provide your name to check your reservation status?

USER: My name is Ryan Martinez.

ASSISTANT: Ok Ryan, I found a reservation on your name. Could you please provide your new airport codes?

USER: Ok, my new airport codes are IAD and EWR.

ASSISTANT: Ok, please share your dates of travel to proceed further.

USER: My travelling dates are 08/12 and 08/14.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: Ok, there is a flight 1005 in Spirit airline matching your details with price 200. Shall I proceed?

USER: Ok, please proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you so much.

ASSISTANT: You are welcome, have a nice journey.