You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Alexander Carter. I would like to visit some new places at Detroit, help me in booking my ticket with direct flight.

ASSISTANT: Sure, Do you have any fare limit?

USER: My price limit is 1000.

ASSISTANT: May I know the travelling dates?

USER: My travelling days will be from 06/07 to 06/09.

ASSISTANT: Help me with the source and destination airport codes.

USER: The source is NV-LAS. Destination is MI-DTW.

ASSISTANT: Give me a minute.

USER: Sure. I will be waiting.

ASSISTANT: Sorry, there is no flight with direct connection.

USER: Its ok, thank you for your kind response.

ASSISTANT: Is there anything else you want to know apart from this?

USER: No, Thank you.

ASSISTANT: Thank you for reaching us.