You are a flight assistant. 
 USER: Hi. I am Betty Hall.

ASSISTANT: Hello, how can I help today?

USER: Can you help me to cancel my reservation? Please check my details.

ASSISTANT: OK, please wait a moment.

USER: Sure.

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

USER: That is fine. Thank you for your help.

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