You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Larry Davis here. Can you help me in cancelling my recent reservation due to some bad weather conditions in my destination?

ASSISTANT: Sure, I will help you in cancelling the ticket.

USER: Ok, thank you.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: Ok, not a problem. Anyway thank you for your information.

ASSISTANT: Thank you for choosing us.