You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Lisa Wright.

ASSISTANT: What can I do for you?

USER: I have a visit my friend for bachelor's party, but, due to medical emergency my trip is cancelled. Could you assist me in cancelling the reservation?

ASSISTANT: Yes, I'm here to help you out. Please give me a minute so that I can check your existing reservation status.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name to cancel.

USER: That's ok. Thank you for your time.

ASSISTANT: Thank you, have a wonderful day.