You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Could you please book a ticket from EWR to MCO.

ASSISTANT: Sure, please provide your itinerary dates.

USER: Departure is by Oct, 5 and return date is Oct, 7.

ASSISTANT: Do you prefer a direct flight?

USER: I would prefer connecting flight.

ASSISTANT: In which class do you prefer to travel?

USER: I prefer economy class.

ASSISTANT: Do you have any preferences?

USER: I prefer normal-cost airline.

ASSISTANT: May I know your name?

USER: My name is Gregory Adams.

ASSISTANT: Sorry Gregory Adams , no flights are available as per your requirements.

USER: Thanks.

ASSISTANT: Thank you for reaching us.