You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to visit my friend's house at Houston city. Can you book a flight from OAK to IAH?

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

USER: I will travel on Oct 10 and return on Oct 12.

ASSISTANT: Do you have any specifications about flight connections?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: My name is Linda Campbell.

ASSISTANT: The American airlines providing an economy class flight with price 200 and the connections 1. Shall I confirm your ticket?

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked. The flight number is 1002.

USER: Thank you for helping me.

ASSISTANT: Welcome, have a great day.