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

ASSISTANT: Hello, how may I assist  you today?

USER: I just want to cancel my recent reservation, due to my interview has been cancelled. Can you help me to cancel my reservation?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: Please wait for some time, I will check with your recent reservation status.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry we did not find any reservation against your  name.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for approaching us. Have a good day.