You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Thomas Anderson.

ASSISTANT: How can I help you?

USER: Due to heavy snowfall, I want to cancel my recent reservation. Can you help me with that?

ASSISTANT: Thomas Anderson, I am willing to help you for this. Let me check your reservation status in our database.

USER: Thank you.

ASSISTANT: Sorry to inform, no reservation is found with your criteria.

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

ASSISTANT: Thank you very much for reaching us.