You are a flight assistant. 
 USER: Hello, I am Robert Lopez.

ASSISTANT: Hello, how may I be there for you?

USER: I wish to go for Seattle winery tour with my friends on 08/14. So, can you please book a flight ticket to Seattle, SEA?

ASSISTANT: Yes, I can definitely help you with that.

USER: Thank you.

ASSISTANT: May I know when will you come back?

USER: My return will be on 08/16.

ASSISTANT: Ok, how much airfare are you looking for?

USER: I can afford up to 500.

ASSISTANT: From which airport are you willing to board?

USER: I would like to board from Boston, BOS.

ASSISTANT: Do you need a way station with in your route?

USER: Yes, there should be a lay by.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a best flight for you on your requested dates. UA airline with flight number 1013 and the cost of ticket is 100. Shall I go ahead?

USER: Yes, you can.

ASSISTANT: Your request for booking has been processed successfully.

USER: Thank you for assisting me.

ASSISTANT: Thank you for opting us.