You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. By what way, can I help you out?

USER: I am Elizabeth Moore. I want to travel from CLT to OAK for my project work, can you please help me to book my flight ticket?

ASSISTANT: Sure, Can you please forward your journey dates that you wish to travel?

USER: Sure, I will depart on Feb 5th and I want to return back on Feb 7th.

ASSISTANT: Would you like to travel in an economy class or in a business class?

USER: No, I only prefer for a direct flight.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Sure.

ASSISTANT: We are sorry to say that, there is no direct flight found on your requested dates.

USER: Not an issue. Anyway, thank you for checking.

ASSISTANT: Thanks for approaching us.