You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to prefer a normal-cost airline for my business trip to New York. So can you book the flight ticket for me?

ASSISTANT: Sure, I would be happy to help you. Could you please provide your boarding and landing airport codes?

USER: The airport codes are from LAX to EWR.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: In which airline are you comfortable to travel?

USER: Normal-cost.

ASSISTANT: Could I have your trip dates, please?

USER: The travel dates are from Dec 11 to Dec 13.

ASSISTANT: Please let me know your good name?

USER: Robert Wilson.

ASSISTANT: Ok, please wait for a while, let me search a flight for you.

USER: Sure.

ASSISTANT: We found a connecting flight 1015 from American airlines has fare 300. Shall I proceed?

USER: I am ok with the airline and fare. You can book it.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us, have a safe journey.