You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I'm Mark Thompson. My holiday trip has been cancelled. So, I would like to cancel my reservation. Can you please help me with that?

ASSISTANT: Yes, give me a moment.

USER: Sure, take your time.

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

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for consulting us.

USER: You are welcome.