You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Kimberly White, I want to reserve my flight ticket from PHL to DFW. Can you please help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you. May I know your journey dates please?

USER: Thank you for assisting me. My journey dates are 02/03 and 02/05.

ASSISTANT: Ok, hold on for a moment.

USER: Ok.

ASSISTANT: Let me check the best flight for you.

USER: Ok, fine.

ASSISTANT: Sorry White, there are no flights available on your requested dates.

USER: Not a problem, thank you for checking me the flights for my journey.

ASSISTANT: Thank you.

USER: Most welcome.