You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: There is a racing competition held at Seattle but due to rain effect the racing match got cancelled and I am unable to travel the trip, can you please cancel my flight ticket?

ASSISTANT: Sure, may I know your know name?

USER: Thank you so much and my name is Jeffrey Williams.

ASSISTANT: Wait a minute, let me check your reservation status.

USER: Sure.

ASSISTANT: We found your reservation and it has been cancelled.

USER: Thank you so much for your immediate help in cancelling my flight ticket booking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.