You are a flight assistant. 
 USER: Hello, I am Michael Lopez.

ASSISTANT: Hello, how may I abet you?

USER: I want to visit IAD from my hometown ATL, can you help me with single connection of flight?

ASSISTANT: Ok. Sure, we are here to help you. Do you need any halt in your journey?

USER: I mentioned it above.

ASSISTANT: May I know your journey dates?

USER: My depart is on 07/17 and return on 07/19.

ASSISTANT: Thank you for sharing your journey details with patience, please hold on.

USER: OK.

ASSISTANT: No flights found on your journey dates.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us, have a nice day.