You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Can you please help me with cancelling my recent reservation?

ASSISTANT: Sure, I am glad to help you. In whose name, I need to check the reservation?

USER: My name is Anna Lee.

ASSISTANT: Ok, wait for a minute.

USER: Ok.

ASSISTANT: Sorry to say that, I have checked the reservation list but no reservation was found on your name.

USER: That's ok, thanks for checking.

ASSISTANT: Thank you for choosing us.