You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm planning to visit Disney world, can you please book a ticket from CLT to DCA?

ASSISTANT: Sure, help me with the trip dates?

USER: My planned departure and return travel dates are 25th and 27th of March.

ASSISTANT: Do you have any preferences?

USER: Yes, my maximum connection has to be 1.

ASSISTANT: May I know your name please?

USER: Yes, my name is Elizabeth Parker.

ASSISTANT: Sorry, no flights were available at this moment.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us.