You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I would like to book a ticket from LAS to MSP.

ASSISTANT: Sure, We are here to help you. May I know your name?

USER: My name is Donald Phillips.

ASSISTANT: Please share me your travelling dates.

USER: Departure is by Dec, 18 and return date is Dec, 20.

ASSISTANT: Do you need any break?

USER: I would prefer connecting flight.

ASSISTANT: Is there any other specifications?

USER: I prefer normal-cost airlines.

ASSISTANT: We found a connecting flight with an Hawaiian airlines, flight number:1020.

USER: Please book a flight.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.