You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to book a flight from HOU to LAS?

ASSISTANT: Sure,I will help you in booking a flight ticket. Please share me your preferable trip dates.

USER: My travelling dates are 20 and 22 of Feb.

ASSISTANT: On whose name I have to book a flight ticket?

USER: I am Joseph Anderson.

ASSISTANT: Are you fine with connecting flight?

USER: I am ok with any connecting flight.

ASSISTANT: Do you have class preference?

USER: I prefer to travel in economy class.

ASSISTANT: Please let me know if you have any other specifications.

USER: I don't have any other specifications.

ASSISTANT: Joseph Anderson, here I found a direct flight with Delta Airlines and the airfare is about 100. Can I proceed with the flight 1015?

USER: Please proceed to booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for helping me.

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