You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What guidance do you need from our agency?

USER: Can you aid me to book a ticket from OAK to DCA?

ASSISTANT: Yes, I will help you to book the ticket. Can you please send me your travel dates?

USER: My trip dates are Jun 29 and Jul 1 respectively.

ASSISTANT: Will you please let me know your concern about the connection limit?

USER: I prefer for single connecting flight.

ASSISTANT: Ok, please tell me your full name.

USER: David Jackson here.

ASSISTANT: Ok, do you have any more specifications?

USER: No.

ASSISTANT: Ok, there is a flight with the single stop over in between your journey and  the ticket cost is 100. Shall I reserve an economy class flight?

USER: Please book the ticket.

ASSISTANT: Your ticket is successfully generated, the flight number is 1012  which is provided by the JetBlue airlines.

USER: Thank you for the help.

ASSISTANT: Most welcome. Thank you for opting us.