You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Helen Davis and I want to cancel my reservation. Can you please help me?

ASSISTANT: Sure, please wait a moment.

USER: Ok, take your time.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: Ok, thank you for the information.

ASSISTANT: Thanks for reaching us.