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

ASSISTANT: Hello, how can I assist you?

USER: Due to the heavy rainfall in Atlanta, help me in canceling my reservation.

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

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

USER: No issues, thank you for your response.

ASSISTANT: Thank you.