You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Ruth King here, I want to reserve my ticket from DEN to PHL, can you please help me?

ASSISTANT: Sure, can I know the travel dates please?

USER: Sure, my dates of journey is from 04/14 to 04/16.

ASSISTANT: Ok, wait a moment please.

USER: I want a direct flight. Sure.

ASSISTANT: Sorry, there are no direct flights available on your route.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Anyways, thank you for your service.