You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: My name is Paul Allen. I have to attend an exhibition at Philadelphia. Can you help me in booking a ticket from OAK to PHL?

ASSISTANT: May I know your desired travel dates please?

USER: My preferred journey dates are 08/17 and 08/19.

ASSISTANT: There is a flight with connection limit 1 and fare 100, is it ok for you?

USER: Please book the ticket.

ASSISTANT: Your ticket is booked, flight number 1012.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.