You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Owing to an emergency, my interview postponed to future dates. So I had a request to you to change my existing reservation?

ASSISTANT: Ok, Please provide me your name to proceed further.

USER: Sure, I had a reservation with name Ruth Nelson.

ASSISTANT: We found a reservation with your name, can I have your new updates reservation details please?

USER: Sure, my new journey departs from CLT to LGA. And I need to travel on 12/08 and 12/10.

ASSISTANT: We found a connecting flight with price 200, flight number 1007. Shall I proceed for booking?

USER: Yes, you can.

ASSISTANT: Ticket has been confirmed with JetBlue airlines.

USER: Thanks for your assistance.