You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to attend my sister's wedding anniversary, can you please search a direct flight for me?

ASSISTANT: Sure, I will help you for booking, can you please provide me your travelling dates?

USER: Ok, my trip dates are from 04/12 till 04/14.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from DEN to IAD.

ASSISTANT: Hawaiian airline is providing with the cost 300 and the flight number 1008. There is a connecting flight. Are you comfortable with that?

USER: No, I want a direct flight.

ASSISTANT: Ok.

USER: Thank you for the help.

ASSISTANT: May I know your name?

USER: Myself Gary Taylor.

ASSISTANT: Thank you.