You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Please book a ticket from LAS to DCA to attend an interview.

ASSISTANT: Sure, can you please share your journey dates?

USER: My travelling dates are Aug 12 and Aug 14.

ASSISTANT: Are you looking for any preferred connections?

USER: I want one connection.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Let me know your name to proceed further?

USER: I am Jonathan Gonzalez.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for approaching us.