You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking a flight ticket from CLT to DCA?

ASSISTANT: Sure, I am here to help you. Can you please let me know your travel dates?

USER: I want to fly on Aug 02 and return on Aug 04.

ASSISTANT: Thank you. Please let me know your name.

USER: Myself Thomas Anderson.

ASSISTANT: Are you comfortable with connecting flight or direct flight?

USER: I need a direct airline.

ASSISTANT: Direct flight is available with UA Airlines and the ticket fare is 200 only in economy class. Flight departs at 16:00 hours and arrives at 4:00 hours. Shall I book the ticket for you?

USER: You can proceed to booking.

ASSISTANT: Your ticket is booked and your flight number is 1001.

USER: Thank you.

ASSISTANT: You are most welcome.