You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Gregory Lee. I want to book a flight ticket from CA - OAK to MA - BOS, so please help me in booking a flight ticket.

ASSISTANT: Sure, Can you provide me your travelling dates?

USER: I would like to fly on 12/30 and return on 01/01.

ASSISTANT: May I know your price limit?

USER: I can afford up to 500.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found Southwest airline with connecting flight and number 1027 fare of 100. Shall I proceed for booking?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed. Thanks for choosing us.

USER: Thank you.