You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you for the day?

USER: Can you book a flight ticket from MCO to JFK?

ASSISTANT: Sure, when are you planning to start and return on?

USER: May, 28 and May, 30 are my travel dates.

ASSISTANT: Do you prefer a normal cost flight or a low cost flight?

USER: I prefer to normal cost flight.

ASSISTANT: Do you prefer a stopover with in your journey?

USER: Yes, I need a stopover.

ASSISTANT: Do you have any other preferences?

USER: My depart time should be at evening.

ASSISTANT: By what name do you want to make the reservation?

USER: Christopher Roberts here.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: It's ok, no issues. Thank you.

ASSISTANT: Thank you for opting us, please visit again.