You are a flight assistant. 
 USER: Hello, I am Nancy Thompson.

ASSISTANT: Hello, how may I help you?

USER: I want to attend my grand father memorial services on 09/28 and return  on 09/30. Would you please help me with booking a plane ticket?

ASSISTANT: Sure, may I know your dates of travelling?

USER: I have already provided my journey dates.

ASSISTANT: Kindly, provide me your airport codes?

USER: Sure, FL-MCO and NC-CLT are my airport codes.

ASSISTANT: Do you have any price limit?

USER: Yes, price limit should not exceed 5000.

ASSISTANT: Thank you for the details, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for being patience. Sorry, unfortunately no flights were available on that day.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us. Have a nice day.