You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Nicholas Allen.

ASSISTANT: Ok.

USER: I want to cancel my recent reservation. Can you help me in this?

ASSISTANT: Sure, I am here to help you. Please stand by.

USER: Thank you. Ok.

ASSISTANT: Thank you for waiting.

USER: My pleasure.

ASSISTANT: Sorry to inform you that we didn't find any reservation on your name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.