You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I want to go to Boston in this month so can you please help me in flight ticket booking process from OAK to BOS?

ASSISTANT: Sure, May I know the journey dates?

USER: Thank you for your response, I want to take off on Aug 22 and book my return ticket also on Aug 24.

ASSISTANT: Do you have any connection limit?

USER: I need 1 break in between my journey.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Is there any other requirements?

USER: I want to travel in business class flight.

ASSISTANT: May I know your name?

USER: Sure, my name is Gregory Brown.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.