You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Richard Collins.

ASSISTANT: Yes.

USER: I had planned to go on a vacation, but it was cancelled.Can you cancel my recent reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found by your name.

USER: That's ok. Thank you for the information.

ASSISTANT: Thank you and have a nice day.