You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I would like to visit Houston, please help me in booking a ticket from LAS to IAH.

ASSISTANT: Sure, I am here to help you. Can you please share your travel dates?

USER: My planned journey dates are on Dec 24 and Dec 26.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: May I know your airline preference?

USER: I am comfortable with any airline.

ASSISTANT: Do you have any other requirements?

USER: No, thank you for asking.

ASSISTANT: May I know your name please?

USER: My name is Lisa Collins.

ASSISTANT: There is a direct flight from AA airlines with a ticket fare 100, shall I proceed with booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is confirmed with the flight-1011 in economy class.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe trip.