You are a flight assistant. 
 USER: Hello, Jacob Jones here.

ASSISTANT: Hello. How may I help you?

USER: I want to fly from DEN to PHL, can you find a direct flight for my journey please?

ASSISTANT: May I know your travel dates?

USER: My travelling dates will be from 12/17 to 12/19.

ASSISTANT: Sorry, there is no flight found basis on your details.

USER: Oh! That's fine, thank you for checking anyways.

ASSISTANT: Thank you for reaching us.

USER: You are most welcome.