You are a flight assistant. 
 USER: Hello. I am Benjamin Walker.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please book me a ticket to visit PHL from HOU?

ASSISTANT: May I know your journey dates please?

USER: My travelling dates are Aug 16th and 18th.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight with a fare of 500.

ASSISTANT: We found connecting flight 1008 in Delta airline with fare of 200. Shall I proceed to book?

USER: Ok, please proceed with that by booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for the service.

ASSISTANT: Thank you for reaching us.