You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: Actually there are some family issues, so I am unable to go for the trip, can you help me in cancelling my ticket?

ASSISTANT: Sure, I will help you with that. May I know your name please?

USER: My name is Larry Miller.

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

USER: It's ok, thank you for searching.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Thank you.