You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from DCA to CLT to enjoy music festivals. Can you help me in booking a flight ticket?

ASSISTANT: Sure, I will help you. May I know your travel dates?

USER: Sure, my scheduled dates are Dec 21 and Dec 23.

ASSISTANT: Ok, can I know your preferences?

USER: I am comfortable with any flight.

ASSISTANT: Ok, may I know your name?

USER: Sure, Ryan Carter here.

ASSISTANT: Ok, do you prefer for a direct flight or connecting flight?

USER: I am comfortable with any flight.

ASSISTANT: There is a flight with two connection available in AA airlines and the ticket costs you 100 only. Can I book the ticket for you?

USER: Yes, you can.

ASSISTANT: Your ticket is booked with the flight-1023 in economy class.

USER: Thank you.

ASSISTANT: You are welcome and thank you for choosing us.