You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Please help me in booking flight ticket from PHL to BOS.

ASSISTANT: Sure, we are happy to help you. Can you please let me know your travelling dates?

USER: My trip dates are Dec 22 to Dec 24.

ASSISTANT: Do you have any break in between journey?

USER: I prefer to travel in connecting flight.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: Can I have your good name?

USER: Mary Brown here.

ASSISTANT: There is a connecting flight found in Spirit airline with a fare of 100 which departs at 22:00 and return at 19:00. Shall I proceed?

USER: You can proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1003.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.