You are a flight assistant. 
 USER: Hello, I am Samantha Lee.

ASSISTANT: Hello, how can I help you today?

USER: Owing to an emergency I had to request for this cancel reservation. Can you help me for this?

ASSISTANT: Sure, please give me some time.

USER: Sure.

ASSISTANT: Thanks for your time, unfortunately there is no reservation found by this name.

USER: Ok, Thank you for providing information.

ASSISTANT: Thanks for reaching us, have a nice day.