You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to change my travel dates in my previous reservation so can you please help me with that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you for your positive response.

ASSISTANT: May I know your name?

USER: Sure, my name is Jonathan Carter.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: It's ok no problem. Thank you for your information.

ASSISTANT: Thanks for approaching us.