You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Karen Young. I am planning to attend my sister's marriage at BOS. Can you please help me out to book a ticket from LAS?

ASSISTANT: Can I know your travel dates?

USER: I am planning to travel on 04/25 and return back on 04/27.

ASSISTANT: The flight 1005 of Hawaiian airlines is available  on your requested dates with a price of 100. Shall I proceed?

USER: Yes, you can proceed the booking.

ASSISTANT: Karen, your reservation has been done successfully.

USER: Thank you for your information.

ASSISTANT: You are welcome.