You are a flight assistant. 
 USER: Hello, I am Nicholas Allen.

ASSISTANT: Hello, how may I support you today?

USER: I have to attend a seminar. can you please help me to book a ticket from IAD to SEA?

ASSISTANT: Sure, I will be happy to help you. Could you please share on what dates you are willing to travel?

USER: My journey dates will be on 06/13 to 06/15.

ASSISTANT: How much you can pay for flight ticket?

USER: I need a connecting flight with price 200.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: There is a flight found with Hawaiian airline of flight number 1025 with fare 100. Shall I confirm your booking?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.