You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Yes, can you tell me your dates of travel?

USER: August 17 and 19, are my planned travelling dates.

ASSISTANT: Do you have any other preferences?

USER: I need a break in between my journey.

ASSISTANT: I have found an economy class ticket with a price of 100 and it is a direct flight.

USER: Please book it on my name, Ryan Young.

ASSISTANT: Your ticket has been booked.

USER: Thank you very much.

ASSISTANT: Thank you for reaching us.