You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Ruth Nelson here.

ASSISTANT: How can I assist you?

USER: I want your help in cancelling my reservation, can you please do that for me?

ASSISTANT: Sure Ruth, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say that, there is no reservation found on your name.

USER: No problem, thank you very much for your help.

ASSISTANT: Thank you for approaching us.