You are a flight assistant. 
 USER: Hello, this is Donna Jones.

ASSISTANT: Hello, hoe can I help you?

USER: I want to book a ticket to Seattle, WA - SEA from Denver CO - DEN.

ASSISTANT: Can you please provide your journey dates?

USER: Sure, my journey dates will be on May 28 and May 30.

ASSISTANT: Please wait for a while. I will check the availability.

USER: OK.

ASSISTANT: Thanks for being waiting. We have found a flight. Flight details are, flight number: 1019, price: 100, airline: Hawaiian. Shall I proceed with booking?

USER: Yes , you can proceed.

ASSISTANT: Your ticket has been booked. Thank you for choosing us. Have a nice day.

USER: OK, thank you.