You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you help me to book a economy class flight ticket?

ASSISTANT: When you are willing to travel?

USER: My travel dates are Mar 14 and Mar 16.

ASSISTANT: Can you help me with your travelling airport codes?

USER: My airport codes are LGA and AUS.

ASSISTANT: Let me know your connection limit?

USER: My connection limit is 1.

ASSISTANT: Do you have any other requirements?

USER: I would like to return back in the afternoon time.

ASSISTANT: May, I know your good name?

USER: My name is Kimberly Collins.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.