You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, give me a moment.

USER: Ok take your own time.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: That's fine. Thank you.

ASSISTANT: You are welcome.