You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Gregory Evans here.

ASSISTANT: Yes Evans.

USER: I would like to book a flight on the route from CLT - DFW, can you assist me?

ASSISTANT: Sure, I will help you in booking, please share your travelling dates?

USER: I need a direct flight on the dates from 05/08 to 05/10.

ASSISTANT: Sorry, no flights as per your details.

USER: No issues with it, thank you for checking.

ASSISTANT: It's my pleasure.

USER: Most welcome.