You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Brian Lopez here.

ASSISTANT: What service that you are looking from our agency Lopez?

USER: Do you have any round trip flight for JFK?

ASSISTANT: If you provide your journey dates also we will tell you about the availability of flight.

USER: My trip dates are 06/04 and 06/06.

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

USER: Sure.

ASSISTANT: Yes, there is a flight with your requested dates. Flight details are, flight number 1003 having with a fare of 100 provided by Delta airlines. Are you ok with this flight?

USER: You can proceed.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1003.

USER: Thank you.

ASSISTANT: Thank you for reaching to our services, have a great journey.