You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need you to book a flight ticket from PHL to HOU. Please help me.

ASSISTANT: Sure, we are here to help you. Can I have your travelling dates?

USER: August 22 and 24 are my planned travelling dates.

ASSISTANT: Do you have any break in between journey?

USER: Yes, I do need it in my journey.

ASSISTANT: Is there any other specifications for you?

USER: Nothing to specify.

ASSISTANT: On which name would you like me to book the flight?

USER: On my name, David Hill.

ASSISTANT: We found a connecting flight in Spirit airline with a fare of 400 which departs at 10:00 and return at 22:00. Shall I proceed for booking?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1004.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.