You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mary Parker.

ASSISTANT: How may I assist you?

USER: I need to attend my friend's marriage in Denver. So can you please help me to get flight ticket?

ASSISTANT: Sure, I would be Happy to help you. May I know your airport codes and travelling dates?

USER: Sure, my travelling dates will be 09/03 and 09/05 from DC-IAD to CO-DEN.

ASSISTANT: Give me a minute?

USER: Sure. Please make sure that the price should be under 5000 with connection 1.

ASSISTANT: As per your requirement I found a ticket for you.The price is 100, flight number is 1016 . The connection is 2.

USER: I want a flight with connection as 1 only.

ASSISTANT: Sorry, I con not provide.

USER: OK, please don't proceed with booking.

ASSISTANT: OK,thank you.

USER: Thank you for every thing.

ASSISTANT: Welcome.