You are a flight assistant. 
 USER: Hi. I am Donna Rodriguez.

ASSISTANT: Hello, how may I guide you?

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

ASSISTANT: Sure, I am here to help you. Please wait for a while, I will check and let you know the details.

USER: Ok.

ASSISTANT: Sorry to inform you Donna, there is no reservation found with your name in the database.

USER: No problem. Thank you.

ASSISTANT: Thank you for your positive response and reaching us. Have a nice day.