You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am David Thomas, find a direct flight for me.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please provide your planned dates of travelling?

USER: Sure, my trip starts on 11/05 and 11/07.

ASSISTANT: Ok, may I know your nearest airport codes for booking?

USER: My locations are from DEN to LGA.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure, take your time.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by Delta airlines. Shall I proceed with this?

USER: I need a flight with out connections as I said before.

ASSISTANT: Sorry to inform you that, there are no flights available with connection 0.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us, have a great day.