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

ASSISTANT: Hello, May I know, how can I serve you?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I can help you in that. Please wait for a moment.

USER: Sure.

ASSISTANT: We are sorry to say that, there is a no active reservation found on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for reaching us, have a nice day.