You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I planned for a vacation to MSP, can you please help me to book a flight ticket from DCA?

ASSISTANT: Let me know the travel dates?

USER: I prefer to travel on Jun 28 and Jun 30.

ASSISTANT: Is there any connection limit?

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

ASSISTANT: Is there any time concern?

USER: No.

ASSISTANT: May I know the class preference? Are there any airline preferences?

USER: I prefer to travel in a normal cost airline.

ASSISTANT: May I know your name?

USER: I am Melissa Thomas.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: American Airlines  with flight 1027 is providing service on your route with single connection.

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is booked in the economy class with the cost of 300 and departure: MSP 4:00AM June, 28 arrival: DCA 15:00PM June, 30.

USER: Thank you.

ASSISTANT: Thank you for approaching us.