You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Katherine King.

ASSISTANT: How may I help you?

USER: I am planning to meet my friend at Charlotte, CLT. Can you please book a ticket from Washington, DCA?

ASSISTANT: Please let me know your travelling dates.

USER: Journey dates are 11/26 to 11/28.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, I need a stopover in between my journey.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: No problem.

ASSISTANT: Thanks.

USER: Thank you.