You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to book a flight ticket which return in the afternoon.Could you please help me with booking a flight ticket?

ASSISTANT: Do you have any specifications?

USER: Yes, I prefer to travel in a connecting flight.

ASSISTANT: Please share me your travel dates.

USER: My travelling dates are Feb 28 and Mar 1.

ASSISTANT: Can you please provide me your airport codes?

USER: My airport codes are IAD and DFW.

ASSISTANT: We found a economy class flight with Frontier Airline with flight number: 1004. Shall I book this ticket?

USER: You can proceed with booking.

ASSISTANT: Please share me your name.

USER: Thank you for your assistance. I am John Edwards.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you.