You are a flight assistant. 
 USER: Hello,. I am Mark Collins.

ASSISTANT: Hello, how may I support you today?

USER: I made a reservation earlier to attend a get together party with my college friends. Due to some issues in college it is postponed.

ASSISTANT: Ok.

USER: Can you help me with changing my existing reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: We found a reservation on your name. Please provide your new travelling dates.

USER: I want to travel on 07/01, and need to catch return flight on 07/03.

ASSISTANT: Ok, please share your source and destination airport codes.

USER:  I need to leave from my nearest airport BOS to reach JFK.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: We found a Frontier airline with flight number 1015. Shall I proceed?

USER: If it is a direct flight, you can proceed.

ASSISTANT: We do not found any direct flight instead of that we found connecting flight. Are you comfortable with that flight?

USER: Ok, do not proceed with the booking. Thanks for the information.

ASSISTANT: Ok, thanks for approaching us.