You are a flight assistant. 
 USER: Hi. I am Raymond Allen.

ASSISTANT: Hello, how may I be your helping hand?

USER: Can you help me to change my reservation to week?

ASSISTANT: Sure, please wait a moment I will check your existing details and proceed further.

USER: Sure, take your time.

ASSISTANT: Ok, I found a reservation on your name. Could you please provide your new airport codes?

USER: My airport codes are DFW and BOS.

ASSISTANT: Ok, may I know your travelling dates?

USER: My trip dates are 01/10 and 01/12.

ASSISTANT: Please wait a moment I will check for available flights.

USER: Ok.

ASSISTANT: Ok, there is a flight 1005 in Hawaiian airline matching your details with price 100. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: You are welcome.