You are a flight assistant. 
 USER: Hello, myself Larry King.

ASSISTANT: Hello Larry. How may I assist you at this moment?

USER: I would like to visit Houston Zoo with my friends, please help me in booking a ticket from HOU to HOU.

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable departure and return dates of travelling?

USER: My planned travel dates are 07/19 and 07/21.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Sure, take your time.

ASSISTANT: Based on your travel details, I have found a flight with a single connection with a fare of 100 from Spirit airlines. If you are ok with this, please inform me to book the flight.

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1002.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us, have a great journey.