You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to some financial issues, I would like to postpone my journey. Can you help me in changing my reservation?

ASSISTANT: Sure, I will help you. Please provide your name to check you reservation status.

USER: My name is Jack Moore.

ASSISTANT: I found your reservation, please provide your airport codes.

USER: My source and destination airport codes are JFK and HOU respectively.

ASSISTANT: May I know your travelling dates please?

USER: I would like to plan my journey on dates 07/19 and 07/21.

ASSISTANT: I found a flight for you in JetBlue airlines with price 200. Can I proceed?

USER: Please book the ticket for me.

ASSISTANT: Ok, your booking is confirmed with flight number 1009.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.