You are a flight assistant. 
 USER: Hello, I am Brenda Scott.

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

USER: I need to book a flight ticket to Detroit, could you please help me in booking my flight ticket from IAD to DTW?

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: I planned my trip on 10/22.

ASSISTANT: When you are willing to return back?

USER: I will be back on 10/24.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight.

ASSISTANT: Please wait for a moment.

USER: Ok.

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

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for reaching us.