You are a flight assistant. 
 USER: Hello. I am Matthew Walker.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my recent my recent reservation as my father is going through a surgery, help me in cancelling my recent reservation if it is found.

ASSISTANT: Sure, please be on hold.

USER: Sure.

ASSISTANT: Thanks for your time, no reservation found on your name in the database.

USER: Its ok, I think it is cancelled my brother, thank you for your effort.

ASSISTANT: Thank you for choosing us.