You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: I need to book a ticket from BOS to LAX. Could you book a ticket?

ASSISTANT: Sure, please share me your trip dates.

USER: Trip dates are from Dec, 1 till Dec, 3.

ASSISTANT: Is there any class preferences for you?

USER: I am comfortable with any class preference.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need direct flight.

ASSISTANT: May I know your airline preferences?

USER: I prefer normal-cost airline.

ASSISTANT: For booking, we need your name. Please provide it.

USER: My name is Rachel Hernandez.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: We found a Hawaiian airline and 1014 is flight number with a fare of 100. Shall I proceed?

USER: Proceed for booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.