You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: My name is Emma Rodriguez.

ASSISTANT: Welcome to flight booking agency Emma.

USER: I am planning to meet my brother in Los Angeles. Can you help me for booking a flight ticket from PHL to LAX?

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

USER: My planning dates are from 09/17 till 09/19.

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

USER: Sure, I will wait.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 is provided by Southwest airlines. Shall I proceed with this?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your ticket has been booked in flight number 1004.

USER: Thank you for booking.

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

USER: Welcome.