You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: This side Margaret Campbell. I want to travel from IAD to BOS, can you help me in booking?

ASSISTANT: Sure, please share your journey dates?

USER: My preferable dates are 16 and 18 of Dec.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: We found a flight in Delta airlines, flight number is 1010 with one connection and price is 200. Shall I proceed?

USER: Please proceed to booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for helping me in booking a flight ticket.

ASSISTANT: Thank you for choosing us.