You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am trying to cancel my recent ticket which is booked in the last week. Can you please help me in cancelling my ticket?

ASSISTANT: Sure, I will help you with that.

USER: Thank you for accepting my request.

ASSISTANT: Can I know your name to check your previous reservation?

USER: My name is Joseph Scott.

ASSISTANT: Please wait a moment.

USER: Sure, take your own time.

ASSISTANT: We regret that, there is no reservation with your name in our records.

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

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