You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I want to cancel my recent reservation due to heavy snow fall from couple of days. Can you help me with cancellation?

ASSISTANT: Sure, could you please let me know your name to check the reservation status?

USER: Sure, my name is Larry White.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for choosing us.