You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jerry Parker.

ASSISTANT: How may I render you at this moment?

USER: I want to change an existing reservation, can you please help in that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a existing reservation on your name. can you please put forward your new departure and arrival dates?

USER: My airport codes are from GA-ATL to NC-CLT. My new journey dates are from 02/29 to 03/02.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: We found a Jet Blue airline with fare of 100 matches your schedule. Shall I proceed with booking?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1000.

USER: Thanks for your excellent support.

ASSISTANT: Thank you for reaching us.