You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, can I know your name?

USER: I am Margaret Roberts.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: No issues, thank you for checking.

ASSISTANT: Thank you for reaching us.