You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Paul Lee. I want to visit DEN, can you please book a flight ticket from SEA.

ASSISTANT: Sure, I am here to help you to book a flight for you but I need your travel dates to search a good flight.

USER: Sure, my travel dates are 03/27 and 03/29.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: UA airline is providing flight for you with price 100 and connection is 0. Shall I proceed?

USER: No, I am not ok with that, please search a connecting flight for me.

ASSISTANT: Sorry, I could not find any flight with your connection.

USER: It's ok.

ASSISTANT: Thanks for choosing us, have a great day ahead.

USER: Thank you for your information.