You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sandra Edwards.

ASSISTANT: How may I assist you?

USER: Due to bad weather, I want to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Ok.

ASSISTANT: Sandra Edwards, no reservation has been found on your name in our records.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for approaching us.