You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Mary Hernandez. I want to cancel my reservation.

ASSISTANT: Sure, please wait a moment.

USER: Help in cancelling my reservation. Sure.

ASSISTANT: There is no reservation found under your name.

USER: That's fine. Thank you for your help.

ASSISTANT: Thanks for consulting us.