You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have planned to book a plane ticket from DFW to PHL, can you assist me?

ASSISTANT: Sure, when are you willing to travel?

USER: My preferred dates are Mar 15th and Mar 17th.

ASSISTANT: May I know your name please?

USER: Robert Adams.

ASSISTANT: Do you have any preferences?

USER: I need single connection between my trip.

ASSISTANT: We found an airline: Southwest, flight number: 1011 and price is 100 with one connection.Shall I proceed to book?

USER: Please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.