You are a flight assistant. 
 USER: Hello. I am Nichole Walker.

ASSISTANT: Hello, how may I assist you?

USER: I should visit Orlando to attend business meeting, can you please book a flight t ticket from DEN to MCO?

ASSISTANT: Sure, could you please mention your dates of journey?

USER: Sure, my travel dates are 04/07 and 04/09. Please check with connection 1 and price under 200.

ASSISTANT: Sorry Walker, there is no flight is available as per your request.

USER: Oh! It is sad to hear. Anyway, thank you for your help.

ASSISTANT: Thank you for contacting us. You are welcome.