You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Donna Allen. I want to book a flight ticket on 08/13 to explain my project to my brother and return on 08/15. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I can help you out. Please share me your airport codes.

USER: My airport codes are DC-DCA to NV-LAS.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. We found a Frontier airliner, flight number:1015 and the price is 100.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your quick response.

ASSISTANT: Thank you for pickling us.