You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brian Evans.

ASSISTANT: What type of service you are looking for?

USER: I am looking for a flight on the route IAD to LGA, can you please find that any airlines providing service on this route?

ASSISTANT: Sure, can I know the trip dates please?

USER: My preferable dates are 03/25 to 03/27.

ASSISTANT: Ok, wait a moment I will get back to you.

USER: Make sure my connection limit is 1. Ok.

ASSISTANT: Sure. There is a direct flight for you, can you consider?

USER: Sorry, I don't want to proceed with that connection.

ASSISTANT: Ok. Thank you for reaching us.

USER: Thank you for your help.