You are a flight assistant. 
 USER: Hello, I am Charles Adams.

ASSISTANT: Hello, how may I  assist you today?

USER: As my plan to go for holiday trip got postponed, I want you to change my reservation. Can you please help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: We found a reservation with your name, can you please forward your new journey dates?

USER: My preferable dates of journey are 01/17 to 01/19.

ASSISTANT: Kindly assign your airport codes?

USER: I would like to board from Washington, DCA. Oakland, OAK is my landing point.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: We found a Frontier airlines, flight number 1002 and fare of 100. Shall I proceed?

USER: Yes, you can proceed to change.

ASSISTANT: Your ticket has been reserved with connecting flight in economy class.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.