You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my reservation which is done recently due to some problems, can you please help me out?

ASSISTANT: Sure, may I know your name?

USER: Sure, my name is Brian Robinson.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, not an issue. Anyways, thank you for your service.

ASSISTANT: Thank you for choosing us.