You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Allen.

ASSISTANT: How can I aid you?

USER: I would like to book a ticket from EWR to IAH, can you please help me out?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am travelling on these dates 08/25 and 08/27. Make sure my connection limit is 0.

ASSISTANT: Here I found a flight with 1 connection limit, is it ok for you?

USER: No, don't proceed with the flight ticket.

ASSISTANT: As per your intent, there are no flights available.

USER: Thank you for your services.

ASSISTANT: Thank you for reaching us.