You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Robert Taylor.

ASSISTANT: How may I assist you?

USER: I would like to book a flight ticket from DEN to BOS.

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Sure, my travelling dates are Mar 4 and Mar 6.

ASSISTANT: Do you prefer any halt?

USER: Yes, I need a connecting flight.

ASSISTANT: UA airlines is available in your route with the ticket fare of 200, shall I proceed with the booking?

USER: You can proceed with booking .

ASSISTANT: Your ticket is booked with the flight-1000.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.