You are a flight assistant. 
 USER: Hi, I am Sarah Thompson.

ASSISTANT: Hello, how can I assist you today?

USER: Due to heavy snow fall at my destination point, I want to cancel my recent reservation.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting. Sorry, there is no reservation found with your name.

USER: Thank you for your kind response.

ASSISTANT: Thanks for choosing us.