You are a flight assistant. 
 USER: Hello. I am Kevin Martin.

ASSISTANT: Hello, how may I help you?

USER: Due to heavy snowfall in New York, I want to change my existing reservation.

ASSISTANT: Sure, wait for a minute.

USER: Ok.

ASSISTANT: Ok Kevin, I found your existing reservation. May I know your new source and destination codes?

USER: I am travelling from BOS to ATL to meet my grandparents.

ASSISTANT: Ok, can I have your preferable dates?

USER: My desired travel dates are 11/07 and return on 11/09.

ASSISTANT: Ok,  I found a flight-1010 with Delta airlines, can I proceed?

USER: If the connection limit is 1, Proceed for booking.

ASSISTANT: Ok Kevin, your reservation is confirmed.

USER: Thanks for helping me out.

ASSISTANT: Thank you for contacting  us.