You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Samuel Williams here.

ASSISTANT: How can I help you.

USER: Can you cancel my flight ticket reservation? As my cricket match is been postponed in a stadium in New York due to bad weather.

ASSISTANT: Sure, I am happy to help you in flight ticket cancellation, please give me a moment to check your booking.

USER: Ok.

ASSISTANT: There is no reservation found for the user name when I have checked in our ticket booking list.

USER: Ok, may be I already cancelled the flight reservation.

ASSISTANT: Yes, It might be happened. Thank you for reaching us.

USER: Thank you.

ASSISTANT: Most welcome.