You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book the flight ticket from LAS to IAH. Can you please help me?

ASSISTANT: Sure, I am here to help you. May I know your name to proceed further?

USER: Jack Lee.

ASSISTANT: Can you please let me know your travelling dates?

USER: My travel dates are May 4 and May 6.

ASSISTANT: Do you require any connection limit for your journey?

USER: I need a single connection flight.

ASSISTANT: Are you looking for economy class flight or business class flight?

USER: I am comfortable with any class.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Do you have any specific time concern?

USER: No.

ASSISTANT: Thank you for sharing all the details, Jack Lee. Please wait for 2-3 minutes while I check with the availability of flights.

USER: Ok.

ASSISTANT: Thank you for waiting, I found a connecting flight with American Airlines and the airfare is about 200. Shall I proceed with this flight?

USER: Please proceed.

ASSISTANT: For a economy class your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching our agency. Have a safe journey.