You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation, can you help me in that?

ASSISTANT: Sure, may I know your name please to proceed further?

USER: I am Andrew Baker.

ASSISTANT: Baker, there is no reservation found with your details.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for choosing us.