You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you now?

USER: My business trip got postponed, will you help me to change my existing reservation?

ASSISTANT: Ok, may I know your name to check your reservation?

USER: My name is Patricia Jackson.

ASSISTANT: Ok, we found your reservation with your name. Please forward your updated travel details.

USER: Ok, my airport codes are ORD - ATL. And my travelling dates are 07/07 and 07/09.

ASSISTANT: We found a connecting flight in Delta airlines with a fare of 100. Shall I proceed to book this flight?

USER: Ok, please proceed.

ASSISTANT: Ok, your booking has been confirmed with 1002 flight.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a nice day.