You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Please help me to book a flight ticket from DEN to LGA.

ASSISTANT: Sure, we are happy to help you in booking. Can I have your name please?

USER: Matthew Miller.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need  a single connecting flight.

ASSISTANT: Help me with your journey dates, so that it will be easier to move further in booking.

USER: My journey dates are from Jan, 27 to Jan, 29.

ASSISTANT: Let me check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by AA airline with the flight number-1013 and 100. Shall I book the connecting flight?

USER: Please proceed for booking.

ASSISTANT: Your flight booking is confirmed and ticket has been emailed.

USER: Thank you.

ASSISTANT: It's pleasure to serve you.