You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Patrick Moore.

ASSISTANT: How may I guide you?

USER: I would like to spend my weekend time with my friends at amusement park in Chicago. Can you help me in booking a ticket from SFO to ORD?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: My planned journey dates are 11/23 and 11/25.

ASSISTANT: Patrick, no flights has been found on your journey dates.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you for choosing us.