You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Jack Lee. I want to travel from TX-AUS to PA-PHL for a business trip.Can you please help me for booking a ticket?

ASSISTANT: Sure, may I know your travelling dates please?

USER: My departure date is 06/09 and return date is 06/11. Make sure my price limit is 1000 and the connections limit is 0.

ASSISTANT: I am sorry there are no flight with your connection limit.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for approaching us.