You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In what way can I help you?

USER: I want to visit Sonoma Valley to explore different taste of wine. Can you please help me to book a flight ?

ASSISTANT: Sure, when do you want to travel?

USER: I will start on 06/18 and return back on 06/20.

ASSISTANT: Which airports may be your source and destination?

USER: My source and destination codes are LAX and OAK respectively.

ASSISTANT: Do you prefer a whistle station in between your journey?

USER: Sure, I am fine with one halt.

ASSISTANT: At what price are you looking for?

USER: I can pay up to 200.

ASSISTANT: To go with the reservation, we need your good name?

USER: Sure, my name is Kathleen Johnson.

ASSISTANT: Thank you for your valuable information, we found a flight 1012 in Hawaiian airline the price is 100 with a lay by. Shall I proceed?

USER: It looks perfect, please proceed with the booking.

ASSISTANT: Your ticket has been processed with the name, Kathleen Johnson.

USER: Thank you for your help.

ASSISTANT: Thank you for availing with us.