You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Dennis Hill here. My business meeting has been postponed, so I want to reschedule my itinerary dates.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: I have found reservation on your name. Can you tell me your travelling dates?

USER: My trip dates are 09/05 and 09/07.

ASSISTANT: Ok, can I know your nearest airport codes?

USER: My airport codes are ORD and ATL.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found a flight ticket with a price of 100 and 1 connection.

USER: Book my ticket.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for contacting us.