You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: My name is Paul Scott and I want to change my reservation. Can you please help me?

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Unfortunately there is no reservation found with your given name.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.