You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am Jonathan Nelson, please help me to search a flight with 200 price limit.

ASSISTANT: Sure, I will help you with that, please share your airport codes?

USER: My travelling airport codes are IAD and LAX.

ASSISTANT: Ok, let me know your travelling dates to proceed further?

USER: I would like to travel on 09/25 and 09/27.

ASSISTANT: Ok, please hold on for a moment. Sorry, no flights as per your details.

USER: That is fine.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your time.