You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Stephanie Brown.

ASSISTANT: How can I assist you at this moment?

USER: I would like to visit Campus Maritus Park at Detroit, please help me in booking a ticket from DCA to DTW.

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: My journey dates are 10/21 and 10/23.

ASSISTANT: Wait a moment please.

USER: Sure, take your time.

ASSISTANT: Stephanie Brown, there are no flight services available on this route on your provided dates.

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

ASSISTANT: Thank you for contacting us.