You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Jacob Smith here, I like to book my flight from ORD to PHL.

ASSISTANT: Sure Smith, could you please mention me your departure and arrival dates?

USER: 11/19 to 11/21.

ASSISTANT: tell me the connections limit and price limit?

USER: No connection limits but price limit is 5000.

ASSISTANT: OK, as per your details there is a flight, with connection 1 and price 100. Shall I proceed to book the ticket?

USER: Yes, u can.

ASSISTANT: Your ticket has been booked with flight number 1016. Thank you so much for contacting us. Have a nice Journey.

USER: Thank you.