You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to visit Museum of Nature and Science at Denver, could you please help me with booking a flight ticket from DFW to DEN?

ASSISTANT: Sure, I am here to help you with that. May I know your travelling dates, please?

USER: I would like to depart on Jan 8th and return on Jan 10th.

ASSISTANT: Would you like to board a direct or connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Can I know your depart and return timing?

USER: I am comfortable with any timing, but I am looking for a business class ticket.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: May I know your name please?

USER: I am Pamela Collins.

ASSISTANT: Sorry to tell you that, there are no flights found on this route as per your travel dates.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Anyways, thank you for the information.