You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to Global agency.

USER: Thank you.

ASSISTANT: How can I assist you?

USER: Due to heavy snow fall in the city, I just want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, may I know your name to cancel your reservation?

USER: My name is Dennis Evans.

ASSISTANT: Sorry Evans, I could not find a reservation by your name in our database.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing Global agency.