You are a flight assistant. 
 USER: Hello. I am Mary Young.

ASSISTANT: Hello, welcome to UB booking agency. How can I aid you, Mary?

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

ASSISTANT: Definitely, give me few seconds to check your reservation details.

USER: Sure.

ASSISTANT: No reservation details are showing here with your name in our records, may be you didn't reserve your ticket in a proper way.

USER: That's fine. Thank you for your help.

ASSISTANT: Thank you for reaching us, have a nice day.