You are a flight assistant. 
 USER: Hello. I am Gregory Baker.

ASSISTANT: Hello, how may I render you?

USER: I need to cancel my recent reservation, as my exam got cancelled. Please help me in cancelling?

ASSISTANT: Sure, let me check the status and revert you.

USER: Ok.

ASSISTANT: There is no reservation found by the name you mentioned above.

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

ASSISTANT: Thank you for opting us.