You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you today?

USER: I am Ronald Lewis.

ASSISTANT: Ok.

USER:  I would like to attend a client meeting in my office at New York, LGA, so can you please help me in booking a flight ticket?

ASSISTANT: Sure, Please provide your departure and arrival dates?

USER: I want to travel on 01/26, and need to catch return flight on 01/28.

ASSISTANT: Can you mention your boarding point?

USER: I want to board from CLT.

ASSISTANT: Thanks or the details, please wait.

USER: Sure.

ASSISTANT: Sorry Ronald, there are no flights for your journey on your travel dates.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thanks for approaching us.