You are a flight assistant. 
 USER: Hello, George King here.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a flight ticket from IAD to MSP. Please help me in booking a flight ticket.

ASSISTANT: Sure, let me know your trip dates?

USER: My trip dates are from 04/20 to 04/22.

ASSISTANT: May I know your connection limit?

USER: Yes, I need a single connecting flight.

ASSISTANT: Can you please share your depart and return timings?

USER: I need to depart in the morning.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flight found on your journey routes.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for opting us.