You are a flight assistant. 
 USER: Hi, myself Pamela Jones.

ASSISTANT: Hello, how can I assist you at this moment?

USER: Can you please help me in booking a flight ticket on 05/07 and return on 05/09?

ASSISTANT: Can you please provide your source and destination airport code?

USER: My destination is to NV - LAS and depart is from CO - DEN.

ASSISTANT: Can I know your price affordable for flight ticket?

USER: Price limit is 5000.

ASSISTANT: Ok, please hold on, I will check and give you an update.

USER: Ok.

ASSISTANT: Thank you for waiting, there are no flights found on your given dates.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for approaching us, have a good day.