You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My friend is planning to but a car so, he requested me to come on that day. So, I am unable to travel. Can you please cancel iit?

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

USER: My name is Christopher Adams.

ASSISTANT: Adams, there is no reservation found with your details.

USER: It's ok, thank you for searching and spending your time for me.

ASSISTANT: Thank you for contacting us, have a good day.

USER: Ok.