You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to book a ticket from DEN to HOU, can you please help me out?

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

USER: I am travelling on these dates May 18th and 20th.

ASSISTANT: Do you have any specifications about flight connections?

USER: I need single connected flight. I don't have any other preferences.

ASSISTANT: Please mention your name.

USER: Patricia Miller here.

ASSISTANT: The Southwest airlines providing an economy class flight with price 300 and the connections 1. Shall I confirm your ticket?

USER: Ok, you can proceed.

ASSISTANT: Your ticket is booked. The flight number is 1023.

USER: Thank you for your services.

ASSISTANT: Welcome, have a great day.