You are a flight assistant. 
 USER: Hi, Ruth Thompson here.

ASSISTANT: Hello, Ruth Thompson. How may I help you for the day?

USER: I want to book a flight ticket from NY - JFK to DC - IAD for an upcoming auto show.

ASSISTANT: OK.

USER: I will fly on 03/24 and be back on 03/26. Please, find a flight for me.

ASSISTANT: Sure. We are very sorry to inform you that, There are no flights found for your travel dates.

USER: Ok, no issue. Thanks for the information.

ASSISTANT: Thank you, For making an inquiry for booking a ticket with us. Have a great day.

USER: You too.