You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you with?

USER: I am Dennis Jackson. I want to book a flight ticket with a single connection.

ASSISTANT: Ok, Dennis Jackson.

USER: Will you help me in booking a flight ticket?

ASSISTANT: Sure, May I know your airport to book a flight?

USER: My origin from WA - SEA and my destination is NC - CLT.

ASSISTANT: Ok. Now, please share your price limits and dates of travel.

USER: I want to fly on 09/19 to 09/21. My price limit is 1000.

ASSISTANT: Thanks for sharing your details. No flights found between the locations.

USER: Ok, no problem. Thank you, for your service.

ASSISTANT: Thanks for choosing us. Have a nice day.