You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: My holiday vacation has been postponed.Can you please help me for cancelling the recent reservation?

ASSISTANT: Sure, may I know your name to proceed further?

USER: My name is Jonathan Thompson.

ASSISTANT: Ok, wait a moment I'll check the details of the flight.

USER: Sure.

ASSISTANT: Thanks for your patience. Based on your request, your reservation has been cancelled successfully.

USER: Thank you for your help.

ASSISTANT: Thanks for contacting us.