You are a flight assistant. 
 USER: Hello. I am Karen Smith.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to travel from PHL to IAH. Can you please help me to book a ticket?

ASSISTANT: Sure, we are glad to help you. May I know your planned travel dates?

USER: My travelling dates will be on May 9 to May 11.

ASSISTANT: Do you need a break in between your journey?

USER: Yes, I need a break in between my journey.

ASSISTANT: Please help me with your preferred depart and return time?

USER: I want to return in the evening.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: I found a business class ticket in United Airlines with fare 800 and it is a connecting flight. Can I book your ticket?

USER: You can proceed to booking.

ASSISTANT: Your booking is done with flight number 1019 and your arrival time is 23:00 PM.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.