You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to reserve a ticket from ATL to LAS, can you help me in doing that?

ASSISTANT: Sure, let me know your travelling dates?

USER: My trip dates are Mar 18 to 20.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER: Please ensure that my return time is in afternoon.

ASSISTANT: Can I know your name?

USER: Linda Taylor.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.