You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Will you please book me a flight ticket from ORD to EWR?

ASSISTANT: May I know your travelling dates?

USER: I will start on Apr 19th and return on Apr 21st.

ASSISTANT: Please let me know your connection limit?

USER: I need 1 lay by within my route.

ASSISTANT: May I know your name please?

USER: I am Daniel Brown.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, no flights available on your route.

USER: That's alright, thanks for checking.

ASSISTANT: Thank you for choosing us.