You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello How can I aid you the day?

USER: I am Robert Turner. I need to book a flight ticket I want to go shopping at Washington DCA. Can you please help me for booking from DCA?

ASSISTANT: Sure, I am here to help you. When would you like to travel?

USER: I would like to travel on 01/05 to return on 01/07.\.

ASSISTANT: Do you prefer any halts in between?

USER: Yes, I prefer single stop over in between my journey.

ASSISTANT: How much you can afford for your ticket?

USER: I can pay up to 5000.

ASSISTANT: Thanks for the details, Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, I really appreciate your patience. There is no flight found in search to your route on your dates of journey.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us with a query.

USER: Thanks for your information.

ASSISTANT: We hope to serve you again.