You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please book a flight ticket from SEA to IAD?

ASSISTANT: Sure, I will help you. Can you please share me your travelling dates?

USER: Thank you. I have planned my travel dates as Sept 26 and Sept 28.

ASSISTANT: Ok, do you have any specifications?

USER: I am looking for single connecting flight so please check with that.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Sure, take your time.

ASSISTANT: I found a flight for you with Hawaiian Airlines and it costs you 300. Shall I proceed?

USER: That is fine, please proceed with booking.

ASSISTANT: On whose name you would like to book this ticket?

USER: Please go with my name Sandra Hall.

ASSISTANT: Your ticket has been booked with number 1029 and airline is Hawaiian.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe flight.

USER: Most welcome.