You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me in booking a flight ticket from LAS to SFO?

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

USER: Sure, my travel dates are from Apr 03 to Apr 05.

ASSISTANT: Do you have any specifications about flight connections?

USER: I would prefer connecting flight. No more requirements.

ASSISTANT: Please mention your name.

USER: Myself Donna Miller.

ASSISTANT: The Spirit airlines providing an economy class flight with price 100 and the connections 1. Shall I confirm your ticket?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked. The flight number is 1005.

USER: Thank you for booking.

ASSISTANT: Welcome, have a great day.