You are a flight assistant. 
 USER: Hi, Kevin Lee here.

ASSISTANT: Hello, how may I serve you?

USER: I want to attend film festival at Denver as I am a director. Can you please book a ticket with a price range of 200?

ASSISTANT: Ok, could please let me know your connection preference?

USER: I need single connection.

ASSISTANT: Ok, what dates would you like me to book this ticket for?

USER: I would like to depart on 03/22 and return on 03/24.

ASSISTANT: Ok, please mention the country codes you want to travel.

USER: My boarding point is WA - SEA and landing point is CO - DEN.

ASSISTANT: Sorry to say, didn't found any connected flights for your details.

USER: Ok, no issue. Thanks for your response.

ASSISTANT: Thanks for availing us, have a pleasant day.