You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: Can you please help me to change my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can I have your good name to proceed further?

USER: My name is Samuel Turner.

ASSISTANT: Sorry, there is no active reservation on your name in our data.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.