You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your good name please?

USER: Justin Lopez here.

ASSISTANT: Lopez, how can I aid you?

USER: I want to book a ticket from DTW to IAD for a business meet.

ASSISTANT: Ok, may I know the preferable dates of your journey?

USER: My travelling dates are from 03/28 to 03/30.

ASSISTANT: Please give me a minute, I will inform you.

USER: As my friend want to joins in middle, I need 1 connection limit.

ASSISTANT: Sorry Lopez, there are no flights found on your requirement.

USER: That's ok. Thank you for your support.

ASSISTANT: Do you have any other travelling dates?

USER: No, I didn't plan any dates as of now.

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

USER: Welcome.