You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Betty Hill here. Please help me by booking a flight ticket from MCO to DFW.

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

USER: November 5 and 7 are my planned travel dates.

ASSISTANT: Do you have any other specifications?

USER: I wish to return in the afternoon.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for approaching us.