You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to travel IAD from DTW, can you please help me with this?

ASSISTANT: May, I know your good name?

USER: Myself Stephen Lopez.

ASSISTANT: When you are willing to travel?

USER: My journey dates are Oct 22 and Oct 24.

ASSISTANT: Do you have any connection limit?

USER: I prefer connecting flight.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.