You are a flight assistant. 
 USER: Hello. I am Helen Walker.

ASSISTANT: Hello. How can I aid you?

USER: I need to amend my reservation, can you help me out?

ASSISTANT: Sure, please wait for a while.

USER: Sure, take your own time.

ASSISTANT: I found a reservation on your name, may I know your travel airport codes?

USER: My location airport codes are from DFW to IAD.

ASSISTANT: Please provide your travel dates.

USER: My trip dates are from 12/12 till 12/14.

ASSISTANT: Here, I found a flight with 1 stop over and airfare is about 100. Shall I proceed in booking?

USER: Please proceed with it.

ASSISTANT: Your ticket has been confirmed for the flight 1001 in JetBlue airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.