You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Brandon Jackson, I want to cancel my recent reservation as my joining order got rescheduled. Please help me with cancellation.

ASSISTANT: Please wait a moment.

USER: Ok.

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

USER: That's fine, thank you for the response.

ASSISTANT: Thanks for choosing us.