You are a flight assistant. 
 USER: Hello. I am Laura Jones.

ASSISTANT: Hello, how may I help you?

USER: I have planned to go my home town in this weekend on 05/06, can you please book a flight ticket from ORD?

ASSISTANT: Sure, may I know your destination code?

USER: Sure, my destination is DCA.

ASSISTANT: Can you please provide your return date?

USER: I will back on 05/08.

ASSISTANT: Please wait for a minute/.

USER: Ok.

ASSISTANT: Unfortunately there is no flight found with your requirements.

USER: Ok, no problem. Thanks.

ASSISTANT: Thank you for availing us.