You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Andrew Hernandez.

ASSISTANT: How can I assist you? Yes, Andrew.

USER: Due to cold weather I want to cancel my reservation can you help me with that?

ASSISTANT: Sure, let me check the reservation on your name.

USER: Ok.

ASSISTANT: Sorry Andrew, there are no reservation found on your name.

USER: Thank you.

ASSISTANT: Thank you for contacting us.