You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to sudden work at my office, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Ok, please share your name and let me see if I can help you with that.

USER: Sure, I am Margaret Lewis.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We didn't find any reservation on your name to cancel.

USER: Ok, Thank you.

ASSISTANT: Thank you.