You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kathleen Perez here.

ASSISTANT: How can I help you today?

USER: I want to travel from Austin to Chicago. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, please tell me your preferred dates of trip.

USER: My departure date is 07/26 and return date is 07/28.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from AUS to ORD.

ASSISTANT: I found a flight with 2 connection, can I book?

USER: Make sure my connections limit is 1.

ASSISTANT: Sorry, no flight is available with single connection.

USER: Anyway, thanks for the information.

ASSISTANT: Most welcome.