You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to book a ticket from BOS to DEN to attend seminar, can you help me in booking?

ASSISTANT: Sure, to book a ticket can I know your planned travel dates?

USER: I am departing on May 21 and return on May 23.

ASSISTANT: Do you have any airline preference?

USER: I want a flight with normal-cost airlines.

ASSISTANT: May I know your good name please?

USER: My name is Sharon White.

ASSISTANT: There is a flight available with an airline Hawaiian of flight 1018 in an economy class with single connection.

USER: Please proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.