You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you out ?

USER: I am going to religious festivals with my friends at Seattle. Can you do the reservation?

ASSISTANT: Ok. Sure, I will reserve you. Could you tell me airport codes, please?

USER: My airport codes are IAH-SEA.

ASSISTANT: Ok. Please forward your travelling dates.

USER: Dates are 09/12 and 09/14.

ASSISTANT: May I know your name?

USER: Stephen Young here.

ASSISTANT: Ok. There is a flight that matches your criteria. Hawaiian airline is there on your respective dates of travel. Stephen Young, your flight number is 1017.

USER: Please book that flight.

ASSISTANT: Ok. Your ticket is confirmed with one connecting flight.

USER: Thank you so much.

ASSISTANT: Thanks for approaching us.