You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Betty Lewis.

ASSISTANT: In what way, may I support you now?

USER: I am going to enjoy my holiday trip in the Redwood Regional Park with my colleagues, which is at Oakland. Can you book me a ticket within the range 200?

ASSISTANT: Ok. From where you want to start your journey?

USER: I want to start my journey from Boston, BOS.

ASSISTANT: On which date you would like to start your journey?

USER: I would like to start my journey on 07/13.

ASSISTANT: May I have your landing point?

USER: Landing point is OAK.

ASSISTANT: Kindly mention your return date.

USER: Return date is to 07/15.

ASSISTANT: Delta airline of price 200 with 1 connection in 1006 flight. May I confirm your ticket?

USER: Yes, please proceed.

ASSISTANT: Confirmation of your ticket has been done.

USER: Thanks for your effort and service.

ASSISTANT: Thank you for opting us.