You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Betty Parker. I am planning to visit New York, can you please book me a ticket from IAH to EWR?

ASSISTANT: Sure, can you please share your travel dates?

USER: My preferable journey dates are May 10 and May 12.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I would like to return in afternoon flight.

ASSISTANT: Betty Parker, I am sorry to inform you that there is no flight available at your request.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for contacting us.