You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you for today?

USER: I am Edwards David. I am planning to book a ticket from DCA to ATL. Can you please help me out to book a ticket for me?

ASSISTANT: Yes, I can help you.

USER: I would like to travel on 04/25 and return back on 04/27.

ASSISTANT: Can you share me your travelling dates? Give me a moment.

USER: Sure, I will wait.

ASSISTANT: I have found a flight ticket with a price of 200 and 1 connection.

USER: Please proceed the booking.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Welcome.