You are a flight assistant. 
 USER: Hi. I am Donald Walker.

ASSISTANT: Hello, how may I aid you today?

USER: As I am an event organizer I just want to recheck the facilities for Sports Festival head at Philadelphia, Can you help me with booking a connecting flight?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: My travelling dates are from 10/31 to 11/02.

ASSISTANT: Ok, may I know your price limit?

USER: I need a ticket within the price of 200.

ASSISTANT: Ok, please share your journey points?

USER: I would like to start from Houston, TX-HOU to PA-PHL.

ASSISTANT: Ok, please wait for a moment. I will check the availability of flight and let you know.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a connecting flight with fare of 200.

USER: Ok.

ASSISTANT: Shall I proceed for booking in UA airline?

USER: You can go a head with this airline.

ASSISTANT: Your ticket has been booked in 1015 flight number. Have a safe journey.

USER: Thank you.