You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me booking a flight ticket from DCA to LGA?

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

USER: I will start on 02/21 and return on 02/23.

ASSISTANT: Do you have any preferences about flight connections?

USER: I need a break in my journey.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: I am Raymond Allen.

ASSISTANT: The Delta airlines providing a direct flight with price 100. The class is economy. Shall I confirm your ticket?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked. The flight number is 1028.

USER: Thank you.

ASSISTANT: Welcome, have a great day.