You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Ronald Harris.

ASSISTANT: How can I assist you?

USER: I have a meeting to attend at Washington. Could you please help me in booking a ticket?

ASSISTANT: Sure Harris, can I know your travel dates please?

USER: My preferred journey dates are 10/01 and 10/03.

ASSISTANT: Could you provide the airport codes please?

USER: The airport codes are DEN and IAD respectively.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your time.

ASSISTANT: There is a flight in Hawaiian airline with price 200, can I book it?

USER: Please book the ticket.

ASSISTANT: Your ticket has been booked with flight number 1002.

USER: Thank you for your assistance.

ASSISTANT: You are welcome.