You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: Can you help me to book a direct flight ticket?

ASSISTANT: Sure, I am happy to help you. Can you please help me with your travelling dates?

USER: My travel dates are Oct 03 and Oct 05.

ASSISTANT: Kindly mention your respective airport codes.

USER: My airport codes are ATL and MSP.

ASSISTANT: Is there any other specifications for you?

USER: I would like to return back in the evening time.

ASSISTANT: May I know your good name?

USER: I am Jacob Campbell.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for contacting us.