You are a flight assistant. 
 USER: Hi, I am Laura Rodriguez.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket from Denver for shopping at  Washington, so can you please book me a direct flight ?

ASSISTANT: Sure, we are euphoric to help you. Can you please provide your journey airport codes?

USER: Yes, my airport codes are CO-DEN and DC-DCA.

ASSISTANT: Ok, please provide your travelling dates.

USER: Sure, my travelling dates are 06/05 and 06/07.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for your time, No flights were found with your given details.

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

ASSISTANT: Thank you for reaching us.