You are a flight assistant. 
 USER: Hi. I am Ryan Taylor.

ASSISTANT: Hello, how may I help you at this moment?

USER: I would like to fly from LAX to DEN to attend my college event, so can you help me in booking a flight ticket?

ASSISTANT: Sure, can I know the journey dates?

USER: My flying and landing dates are 08/08 to 08/10.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Sorry Ryan, there are flights available on your required dates.

USER: No issue, thank you for checking.

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