You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you aid me to book my ticket from IAH to JFK?

ASSISTANT: Sure. Tell me your travel dates please?

USER: My trip dates are Apr 19 and Apr 21 respectively.

ASSISTANT: May I know your name please?

USER: David Parker here.

ASSISTANT: Are you looking for a stopover in your journey?

USER: I prefer for a lay by.

ASSISTANT: Any other preferences?

USER: No other preferences.

ASSISTANT: Thanks for your patience. I have found Hawaiian airlines which is a stopover flight.

USER: Proceed for booking.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1028.

USER: Thank you for the help.