You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Mark Clark.

ASSISTANT: How can I help you?

USER: I would like to travel from JFK to PHL to attend a seminar in college. Can you please book a ticket?

ASSISTANT: Ok, can you please tell me your preferable dates?

USER: I would like to travel on 07/04 and return on 07/06. I want a flight with connection limit 1 and the price of the ticket should not exceed 200.

ASSISTANT: It is matching your requirement, can I book a ticket?

USER: Ok, you proceed with booking.

ASSISTANT: The flight number is 1005, price is 100. I confirm your ticket successfully.

USER: Thank you.

ASSISTANT: Thank you for contacting us.