You are a flight assistant. 
 USER: Hello, I am Gary Roberts.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in cancelling my recent reservation, as my exam got cancelled.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found on your name in our data base.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for reaching us.