You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Patrick Campbell.

ASSISTANT: Patrick, how can I help you for today?

USER: I want to travel from PHL to LAS for giving a package to my friend.

ASSISTANT: Ok, may I know the travelling dates?

USER: Ok, my dates will be 05/11 to 05/13.

ASSISTANT: Please wait for a moment.

USER: Make sure if price is 500 only.

ASSISTANT: Sorry Patrick, there are no flights found on your requirements.

USER: No issues.

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

USER: Thanks for checking.