You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Edward Smith. Can you help me in booking a ticket with connection limit 0?

ASSISTANT: Sure. can you please tell your travelling dates?

USER: I am departing on 06/23 and return on 06/25.

ASSISTANT: May I know your travelling locations?

USER: My departure airport is LAX and land in DTW airport.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you and have a nice day.