You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy Johnson.

ASSISTANT: Nancy Johnson. How can I help you?

USER: Can you help me in booking my flight ticket from LAX to DCA?

ASSISTANT: Sure, may I know the travel dates?

USER: My trip dates will be Aug 4th to Aug 6th.

ASSISTANT: Is there any class preference?

USER: No, I am fine with any class.

ASSISTANT: Are there any connection limits?

USER: I need a connecting flight.

ASSISTANT: Is there any time concern?

USER: My return flight should be in the afternoon.

ASSISTANT: Is there any any airline preference?

USER: I am ok, with any airline.

ASSISTANT: May I proceed further?

USER: Sure.

ASSISTANT: Give me a moment?

USER: Sure.

ASSISTANT: American Airlines with flight 1012 is providing service on your route with single connection flight and the cost of 100 where the departure time is 16:00 PM and Arrival time is 13:00 PM.

USER: You can proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.