You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am John Smith. Can you please help me in booking a flight ticket to OAK from DCA?

ASSISTANT: Sure, I am pleased to help you. May I know when you have planned to travel?

USER: I have planned to go on 05/17 and return on 05/19.

ASSISTANT: Ok, do you need any connection in the journey?

USER: Yes, I need a break.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thank you, we found a flight with number 1020 and airline Delta at a price of 100 with 1 connection.

USER: Ok, please proceed with the booking.

ASSISTANT: Sure, your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us, have a nice day.