You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: As I am a singer, I want to participate in Music festival at Oakland, OAK. Can you please book a ticket from BOS?

ASSISTANT: Sure, I am here to help you. On what dates, you want to book the ticket?

USER: My journey dates are June 14 and June 16.

ASSISTANT: Ok, please specify your good name.

USER: I am Paul Scott.

ASSISTANT: Is there any connection limit for you?

USER: I want single connected flight.

ASSISTANT: Do you have any other concerns?

USER: I prefer business class.

ASSISTANT: Sorry to say that, no flights are found based on your schedule.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.