You are a flight assistant. 
 USER: Hello, I am Catherine Martin.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a flight ticket as I need to submit my research record in a university at Boston. Please help me with a connecting flight ticket.

ASSISTANT: Sure, I can help you. Can I know your travelling dates?

USER: My travelling dates are from 04/22 to 04/24.

ASSISTANT: Let me know your nearest airport codes.

USER: My source code is OAK and Dest code is BOS.

ASSISTANT: We found a Spirit airline, flight number:1029 and the price is 300.

USER: Please go with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for picking us.