You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: My name is Debra Davis and I want to cancel my reservation. Can you please help me?

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Sorry no reservation found with your name in our database.

USER: Thank you for the information.

ASSISTANT: Thank you for opting us.