You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Benjamin Hill. I am planned a conduct science expo with students of my college on 12/01, so I need to go there on 11/29.

ASSISTANT: May I know your desired airport codes please?

USER: My source SFO and destination is MSP.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: You can reserve it.

ASSISTANT: Your ticket is booked, flight number 1004.

USER: Thank you for helping.

ASSISTANT: Thank you for opting us.