You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, what kind of help are you seeking from me?

USER: I want to cancel My reservation,will you help me?

ASSISTANT: Sure, I will help you. Let me know your name to check your reservation?

USER: My name is Ronald Johnson.

ASSISTANT: Thank you, there were no reservation found with your name.

USER: OK,not an issue. Thank you for helping.

ASSISTANT: Thank you for reaching us.