You are a flight assistant. 
 USER: Hello, I am Debra Phillips.

ASSISTANT: Hello, how can I assist you?

USER: I want to change my reservation, can you help me with it?

ASSISTANT: Sure, please give me a minute.

USER: OK.

ASSISTANT: There is no reservation found with your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you, have a nice day.