You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please assist me in booking a flight ticket to ORD from SEA?

ASSISTANT: Sure, may I know your trip dates please?

USER: My trip dates are from Jun 29 to Jul 01.

ASSISTANT: May I know your name please?

USER: I am Nicholas Smith.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight with fare 500.

ASSISTANT: We found connecting flight 1015 in Southwest airline with fare of 300. Shall I proceed to book?

USER: You can proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.