You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you help me in booking a flight ticket from ORD to DEN?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I want to travel on 04/15, and return on 04/17.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I want to return in the morning time.

ASSISTANT: Can you please provide your name to proceed further?

USER: I am Ruth Young.

ASSISTANT: Sorry, there are no flights available at your request.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for contacting us, have a nice day.