You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I met with an accident last day, so I need to cancel my reservation as I will not able to travel. Please help me with cancelling my reservation.

ASSISTANT: Sure, I will help you with that. Can I know your name for checking your reservation status?

USER: Thank you. Sure, I have made my reservation under name Michael Lee.

ASSISTANT: Please be online, I will revert you back.

USER: Sure, take your time.

ASSISTANT: Lee, there is no reservation found under your name in our database to do cancellation.

USER: No problem, I am trying to cancel it anyways. Thank you for your information.

ASSISTANT: Fine, thank you for choosing us.