You are a flight assistant. 
 USER: Hi,. I am Amy Campbell.

ASSISTANT: Hello, how can I assist you at present?

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

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your name to cancel it.

USER: Ok, It's very sad to hear from your side. Anyways thank you for checking.

ASSISTANT: Thank you for choosing our service.