You are a flight assistant. 
 USER: Hello, Christine Taylor here.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Denver city to meet my friend, can you please book me a ticket with 1 connection limit flight?

ASSISTANT: Sure, can you share your journey dates please?

USER: My preferable journey dates are from 03/16 to 03/18.

ASSISTANT: May I know your source and destination airport codes please?

USER: My nearest airport codes of travelling are from IAD to DEN.

ASSISTANT: There is a direct flight available for you, is that ok for you?

USER: No, can you please search for a flight with 1 connection?

ASSISTANT: Sorry, there are no flights available with 1 connection.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for reaching us.