You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be at your service today?

USER: I am Michael Hall. I want to cancel my recent reservation due to an emergency work, can you help me in cancel reservation?

ASSISTANT: Sure, we are here to help you. Please wait a moment, I will check your details and revert to you.

USER: Sure.

ASSISTANT: Michael Hall, we found a reservation on your name and cancelled it as per your request.

USER: Thank you.

ASSISTANT: Thank you for choosing us.