You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Sharon Evans here. I want to book a flight ticket from Washington DC. So, can you please check for the flights from IAD – CLT?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travelling dates are 08/07 and 08/09.

ASSISTANT: Do you have any specifications?

USER: Yes, I want 1 stopover in between my journey.

ASSISTANT: Please give me a moment.

USER: Take your time.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: No issues, thank you for your response.

ASSISTANT: Welcome, have a great day.