You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Justin Edwards. I would like to book a flight ticket to attend a robotic workshop, can you help me to book an economy class ticket?

ASSISTANT: Sure, do you have any particular time for departing and returning?

USER: I want to depart at afternoon.

ASSISTANT: Can you please specify me your dates of travel?

USER: My travelling dates are 03/29 and 03/31.

ASSISTANT: May I know your airport codes?

USER: My airport codes are DTW and MCO.

ASSISTANT: May I know your other specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, no flight is available for you as per your requests.

USER: That's ok, thank you for the response.

ASSISTANT: Welcome.