You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Patrick Nelson.

ASSISTANT: How can I assist you?

USER: Can you please book a flight ticket from CLT to LAX?

ASSISTANT: Sure, I'm happy to help you with that. Can you please let me know your planned travel dates?

USER: Sure, I need to travel on dates of 05/04 and 05/06.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: UA airlines is having a flight on that route with ticket fare of 200, shall I proceed for booking?

USER: If it has connection 0 you can proceed with booking.

ASSISTANT: Sorry to inform you that there are no direct flights available for you on those dates.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.