You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, good morning. How can I assist you today?

USER: I have planned to go for AUS, unfortunately the trip was cancelled. So can you please help me in cancelling my ticket?

ASSISTANT: Ok, please let me check. Can you please provide me your name?

USER: Ok, please check in my ticket under my name Gregory Hill.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Sorry Hill, I have not found any reservation by your name.

USER: Ok, fine not an issue.

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

USER: Thank you.