You are a flight assistant. 
 USER: Hi. I am Helen King.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from SEA to ATL, can you please help me for booking?

ASSISTANT: Sure, I am mirthful to help you.

USER: Thank you.

ASSISTANT: Can you please share your planned journey dates?

USER: I would like to travel on 07/08 to return on 07/10.

ASSISTANT: At what price range, would you like me to book a flight ticket?

USER: I can pay up to 5000.

ASSISTANT: Please hold on. Thanks for waiting, there is no flight found on your desired journey routes.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for availing us.