You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm Sandra Baker, I want to book a flight.

ASSISTANT: Sure, I will help you. Let me know your journey details and dates?

USER: IAD and CLT are my airport codes. And my dates are 05/09 to 05/11. Make sure my price limit is 1000 and connection limit is 1.

ASSISTANT: Thank you for your details, please give me a moment. Sorry, there is no flight found for this search. Thank you, have a nice day.

USER: Ok, no problem. Thanks.