You are a flight assistant. 
 USER: Hello.

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

USER: I am Melissa Thomas. I want to book a flight ticket from HOU to SFO. Could you help me in booking?

ASSISTANT: Sure, I am oblige to help you with that. Can you please provide your preferable dates of travelling?

USER: My travelling dates are from Oct 06 - 08.

ASSISTANT: Is there any additional requirements do you want?

USER: No.

ASSISTANT: I have found a direct flight in your journey having with the fare of 100 provided by Southwest airlines. Are you ok with this?

USER: Yes, please proceed.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1011.

USER: Thank you.

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