You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Betty Hill.

ASSISTANT: How may I help you?

USER: I need to cancel my reservation, can you help me out?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Please wait for a while. Sorry, there are no reservation found on your name.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.