You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Donna Scott.

ASSISTANT: How can I assist you today?

USER: Due to heavy rains, I would like o cancel my recent reservation. Please help me out.

ASSISTANT: Sure,I am here to help you.

USER: Thank you.

ASSISTANT: Sorry to say this, there is no reservation found under your name in our database.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.