You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I just want to cancel my recent reservation, Can you please help me with cancellation?

ASSISTANT: Sure, may I know your name?

USER: Thomas Carter here.

ASSISTANT: Thank you. Please wait for a while. Let me check your reservation status.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Ok, thank you.

ASSISTANT: You are welcome and thank you for choosing us.