You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I have done a booking for my business meeting but that meeting got cancelled.

ASSISTANT: Can you please provide me your name?

USER: Can you cancel my booking which I have done/. ? I'm Mark Thomas.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: Ok, thanks for the information.

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