You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Dorothy Wilson. Actually, I booked a ticket to NYC for a music concert but due to bad weather, I want to cancel my trip. Could you help me in cancelling the reservation.

ASSISTANT: Sure, may I know your travelling dates? Please give me a minute to check with your reservation. Sorry to inform you but there is no reservation by your name sorry.

USER: Thank you for your time.

ASSISTANT: Thank you for reaching us. Have a great day.