You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Jerry Brown planning to visit DFW, can you book a ticket from PHL?

ASSISTANT: Sure, please share your itinerary dates.

USER: Yes, my travelling dates will be 12/02 and 12/04.

ASSISTANT: Please hold on for a while. Let me check for a best flight.

USER: Ok.

ASSISTANT: Delta airlines with flight 1002 is providing service from PHL to DFW.

USER: Yes, proceed with my booking.

ASSISTANT: Brown, your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.