You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Katherine Martin. I am planning to book a ticket to for round trip to Boston, BOS to attend conference.

ASSISTANT: Sure, I will help you with booking a flight ticket. Do you have any specifications?

USER: My price limit is 200.

ASSISTANT: May I know your preferred date of journey?

USER: I want to travel on 10/18 and 10/20.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, here is a flight in Hawaiian airline has fare 100 having a stopover. Shall I confirm your ticket?

USER: Your can proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.