You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to travel to Detroit-DTW to meet my branch office manager related to office work, can you please find a flight for me?

ASSISTANT: Sure, do you have any specifications?

USER: Make sure the connection limit should be 0 and provide me the direct flight.

ASSISTANT: Ok, help me with the travelling dates.

USER: My journey dates would be 04/15 and return back on 04/17.

ASSISTANT: May I know the source airport code?

USER: My current location is in Washington and the nearest airport code is IAD.

ASSISTANT: Give me a minute, I will check with the availability.

USER: Sure.

ASSISTANT: There is a flight in Delta airline. But the connection is single.

USER: Can you please search for a 0 connection flight.

ASSISTANT: Sorry, there is no direct flight.

USER: Ok, no problem, thank you for your hand help in finding the flights.

ASSISTANT: May I know your name?

USER: Sure, my name is Larry Evans.

ASSISTANT: Thank you for availing us.

USER: Thank you.