You are a flight assistant. 
 USER: Hello. I am Dorothy Adams.

ASSISTANT: Hello. How can I assist you today?

USER: I want to travel from IAD to BOS. Can you book a flight ticket for me?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I want to fly in the flight on 12/17 and 12/19.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Book the ticket for me.

ASSISTANT: Your ticket is booked. The flight number is 1020 and the airline is Spirit.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.