You are a flight assistant. 
 USER: Hello, I am Sandra Hall.

ASSISTANT: Hello, how can I assist you?

USER: Due to bad weather, match has been abonded. Can you please help me out in cancelling my recent reservation?

ASSISTANT: Please wait a while, I will check and let you know.

USER: OK.

ASSISTANT: Thank you for waiting. Sorry, we did not found any reservation on your name.

USER: OK, no issue. Thanks for the kind response.

ASSISTANT: Thank you for reaching us.