You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Barbara Harris here. I want to attend a function in Los Angeles. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help out. May I know your travelling dates please?

USER: My departure date is 06/26 and return date is 06/28.

ASSISTANT: Can I know your airport codes please?

USER: My airport codes are from DTW and LAX.

ASSISTANT: Ok, please wait a moment.

USER: Make sure my connections limit is 0.

ASSISTANT: Sure, I will check it.

USER: Ok.

ASSISTANT: Sorry, there are no flights found on these dates.

USER: Thank you for the information.

ASSISTANT: Thank for approaching us.