You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jonathan Wilson.

ASSISTANT: How can I assist you today?

USER: I am planning to visit my brother's home at Philadelphia. Can you please book a ticket from OAK to PHL?

ASSISTANT: Ok, may I know you travel dates for your journey?

USER: My travelling dates are 08/13 and return back on 08/15.

ASSISTANT: Thank for providing your details. There is a flight available with a single connecting flight. Do you want me to proceed?

USER: Make sure my price is 200.

ASSISTANT: Yes, your booking is done and the price of the ticket is 100. Thank you for choosing our agency.

USER: Yes, you can book my ticket. Thank you.

ASSISTANT: Your flight number is 1006. Have safe journey.