You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from AUS to LGA. Could you book a ticket?

ASSISTANT: Sure, let me know your travelling dates.

USER: Travelling dates are from Apr, 13 to Apr, 15.

ASSISTANT: Please share your connection limit.

USER: I prefer connecting flight.

ASSISTANT: Do you have any preferences?

USER: I prefer to fly in a normal-cost airline.

ASSISTANT: May I know your name?

USER: I am Alexander Lopez.

ASSISTANT: We found an Hawaiian airline with single connection and flight number is 1020. Shall I proceed?

USER: Please book a flight.

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.