You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to visit Seattle, can you please book me a ticket from IAH to SEA?

ASSISTANT: Sure, please share me your trip dates.

USER: I am planning my journey on the dates of Dec 13 and Dec 15.

ASSISTANT: Is there any class preferences for you?

USER: I prefer economy class flight.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer connecting flight for this trip.

ASSISTANT: May I know your airlines specifications?

USER: Please ensure that airlines should be normal cost airlines.

ASSISTANT: We found a Hawaiian airline and 1027 is flight number with a fare of 200. Shall I proceed?

USER: That's ok for me. Please reserve my ticket with the name Samantha Hall in this flight.

ASSISTANT: Ok, your ticket is confirmed with an economy class.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for opting us.