You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am William Collins. I would like to book a flight ticket for a round trip LAX. Could you please book a flight ticket on Sep 24?

ASSISTANT: Sure, I will help you with that. Can I have your return journey date please?

USER: I intend to return on Sep 26.

ASSISTANT: There is a connecting flight with Hawaiian airlines, can I proceed?

USER: You can proceed with boooking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.