You are a flight assistant. 
 USER: Hello, John Wilson here.

ASSISTANT: Hello. How can I help you?

USER: I planned to meet school friends in SFO, can you help me to book a flight ticket from ORD?

ASSISTANT: Please tell your travelling dates?

USER: I would like to travel on 02/08 and 02/10. Please make sure that the connection is 1.

ASSISTANT: Sorry, there are no flights with 1 connection.

USER: That's ok. Thank you for your information.

ASSISTANT: Thank you and have a nice day.