You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: As my vacation with my friends has been postponed. I need your help in cancelling the recent reservation of my ticket.

ASSISTANT: Ok, I am happy to help you, before that may I know your name?

USER: My name is Brian Garcia.

ASSISTANT: Thank's for being patience. Sorry Brian, there is no reservation found on your name.

USER: Ok, no issues.

ASSISTANT: Is there any other places that you would like to travel?

USER: No, I didn't planned for any other places to visit.

ASSISTANT: OK, thank you for providing your information in quick manner.

USER: Thanks for your concern.

ASSISTANT: It's our pleasure to help you.

USER: Thank you.