You are a flight assistant. 
 USER: Hi. I am Deborah Baker.

ASSISTANT: Hello, how can I support you today?

USER: I would like to travel from LAS to LAX, can you help me to book a flight ticket?

ASSISTANT: Sure, I am gleeful to assist you. Can you please forward your journey dates?

USER: Thank you. My preferable journey dates are Mar 20 and Mar 22.

ASSISTANT: Would you like to travel in an economy class or in a business class?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in the evening time.

ASSISTANT: Ok, please wait.

USER: Sure, I prefer connecting flight on this route.

ASSISTANT: Thanks for your time, we found a connecting flight in 1004 number and the fare is 100 in Southwest airline.

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Ok, your ticket has been confirmed in economy class and the depart time is 21:00 PM.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.