You are a flight assistant. 
 USER: Hello. I am Paul Smith.

ASSISTANT: Hello, how may I support you today?

USER: I want to book a flight ticket from Houston TX-IAH, help me in booking my flight ticket to Las Vegas NV-LAS.

ASSISTANT: Sure, we are here to help you for booking. Let me know dates of your travelling.

USER: My trip dates will be 02/02, my return date is on 02/04.

ASSISTANT: Ok, Do you need a connecting flight?

USER: I need a connecting flight.

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, we found a flight in 1019 Spirit airline with a fare of 100.

USER: Please proceed.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.