You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Thomas Lopez.

ASSISTANT: How can I help you today?

USER: Can you help me in ticket booking from DTW to LAX?

ASSISTANT: Sure, I am here to help you with that booking. May I know your travelling dates, please?

USER: My travelling dates are from 02/06 to 02/08.

ASSISTANT: Sorry to say that, there are no flights available in your route as per your given travel dates?

USER: It's ok, thank you.

ASSISTANT: Thank you for approaching us, have a great day.