You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent reservation as my friends wedding got cancelled. Will you help me in cancelling my ticket? Reservation was under this name Ronald Williams.

ASSISTANT: Ok, please wait a moment. I will check and get back to you?

USER: Sure.

ASSISTANT: Thanks for waiting. Unfortunately there is no reservation found on the name of Ronald Williams.

USER: Ok, no problem. Thank you for aiding me.

ASSISTANT: Thank you for reaching us and have a great day.