You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: Please help me out in booking the ticket from LAS to LAX.

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: My trip dates will be May 20 to May 22.

ASSISTANT: May I know your name please?

USER: Nicholas Collins is my name.

ASSISTANT: Do you have any specifications?

USER: My return time must be in the afternoon with 1 connection.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.