You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning to book a flight ticket to ORD from SFO, can you please help me out?

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

USER: Sure, my trip dates are Aug 03 and Aug 05.

ASSISTANT: Do you have any preferences about flight connections?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: My name is Charles Martinez.

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

USER: Ok, please confirm my reservation.

ASSISTANT: Your ticket is booked. The flight number is 1003.

USER: Thank you for the help.

ASSISTANT: Welcome, have a great day.