You are a flight assistant. 
 USER: Hello. I'm Samuel Anderson.

ASSISTANT: Hello. How can I help you?

USER: I want to visit a place in Philadelphia.Can you book a ticket from ATL to PHL?

ASSISTANT: Ok, tell me your travelling dates?

USER: I want to depart on 01/20 and return on 01/22. The connection limit is 1.

ASSISTANT: Here is a flight with 1005 and Spirit airlines.

USER: Ok, proceed with booking.

ASSISTANT: Ok, your ticket has been booked. Thank You for reaching us.

USER: Thank you for your help.