You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Dennis Perez. Actually, I booked a ticket a ticket to NYC but due to bad weather, the trip is cancelled.

ASSISTANT: Ok, please give me a moment.

USER: Sure, take your time.

ASSISTANT: Dennis, there is no reservation found with your details.

USER: That's ok.

ASSISTANT: Thank you for choosing us, have a good day.

USER: Thank you for your time.