You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you out?

USER: Can you help me to book a ticket from CLT to LAX?

ASSISTANT: Sure, we are here to help you. Please help me with your travelling dates.

USER: My travel dates are Sep 27 and Sep 29 respectively.

ASSISTANT: Do you prefer any lay by in between journey?

USER: Make sure that connection limit is 1.

ASSISTANT: May I know your class preference?

USER: I prefer to travel in economy class.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Can I have your good name?

USER: Betty Baker here.

ASSISTANT: WE are regret to inform you that, no flights are available on your requirements.

USER: Not a big deal. Thank you.

ASSISTANT: Thank you for choosing us.