You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald Turner from Washington.

ASSISTANT: Ronald, how may I help you?

USER:  I want to book a flight ticket on 05/20 from DCA. Can you help me?

ASSISTANT: Sure, please share your destination airport code and return journey date.

USER: Sure, my destination airport code is SEA and return date is 05/22.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Hawaiian airlines with flight 1013 is providing service with 1 connection.

USER: Please book this flight ticket.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.