You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,how can I help you today?

USER: Please help me to book a flight ticket from OAK to PHL.

ASSISTANT: Can you share me your trip dates?

USER: My trip dates are from Jan, 16 to Jan, 18.

ASSISTANT: Do you need any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Could you share me your preferable timings?

USER: No.

ASSISTANT: Do you need any other requirements?

USER: No, I do not have any preferences.

ASSISTANT: May I know your name?

USER: Joseph Young.

ASSISTANT: I found a connecting flight in economy class with American Airlines and ticket fare of 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is reserved with flight 1000.

USER: Thank you.

ASSISTANT: Thank you for choosing us.