You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Joseph Baker.

ASSISTANT: How may I help you, Baker?

USER: I have a meeting to attend at Seattle. Can you help me in booking a ticket?

ASSISTANT: Could you please share your origin and destination airport codes?

USER: The airport codes are DFW and SEA respectively.

ASSISTANT: May I know your trip dates please?

USER: I am planning my journey on dates 10/15 and 10/17.

ASSISTANT: There is a flight for you in Hawaiian airlines with price 100. Shall I proceed?

USER: Sure, please book the ticket.

ASSISTANT: Ok, your is confirmed with flight number 1017.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.