You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul Smith.

ASSISTANT: How can I assist you today?

USER: I want to book a ticket from IAD to LGA to attend seminar, can you help me in booking?

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

USER: I am departing on 09/21 and return on 09/23.

ASSISTANT: Please give me a moment.

USER: Sure.

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

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked. The flight number is 1014 and the airline is Spirit.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.