You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I need you to make few changes in my recent booking. Please help me.

ASSISTANT: Sure, can I know your name please?

USER: My name is George Rodriguez.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: That's ok. Thank you.

ASSISTANT: Thank you for approaching us.