You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Rebecca Williams. I would like to cancel my recent reservation, can you please help me in cancellation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you.