You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Justin Thomas here.

ASSISTANT: How can I assist you at this moment?

USER: I need your assistance in searching a flight from the hometown city that is Philadelphia, can you please help to book a flight ticket from PHL to SFO?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: I want to travel on 05/24 and return on 05/26.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Ok, take your time.

ASSISTANT: Southwest airlines running a flight in your route with connection 1 and the price of the ticket is 200. Shall I proceed with booking?

USER: It's ok, please go ahead for booking.

ASSISTANT: Ok Justin Thomas, your ticket booking has done and the flight number is 1007.

USER: Thank you for your service.

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