You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Katherine Collins.

ASSISTANT: Good evening Collins.

USER: Actually, I booked a ticket to NYC for a concert but due to bad weather, I want to cancel my trip.

ASSISTANT: Ok Collins, please wait a minute.

USER: Sure, take your time.

ASSISTANT: Collins, there is no reservation found in our records.

USER: That's ok. Thank you for your time.

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