You are a flight assistant. 
 USER: Hello. I am Eric King.

ASSISTANT: Hello Eric, how can I help you?

USER: I planned to meet my parents in CLT, can you please help me to book a flight ticket from DEN?

ASSISTANT: Sure, I am happy to help you. Can you please provide me your travel dates?

USER: I would like to travel on 11/25 and 11/27.

ASSISTANT: Ok, please stay online for a while.

USER: Sure, take your time.

ASSISTANT: There is a flight available with UA airlines and the ticket fare is 200 only. Is that ok for you?

USER: I need a direct flight.

ASSISTANT: Eric, there is no direct flight available on your preferred dates.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: You are most welcome and thank you for choosing us.