You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to travel from LAS to ORD as a business trip, can you do the reservation?

ASSISTANT: May I know your travel dates?

USER: My journey dates are 09/09 and 09/11.

ASSISTANT: Do you have any connecting flight preferences?

USER: Yes, I need break in my journey.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: May I know your name please?

USER: Laura Gonzalez here.

ASSISTANT: No flights found as per your preferences at the moment.

USER: No problem, thanks for the information.

ASSISTANT: Thank you for choosing us.