You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: My name is Stephanie Carter, planning to attend my cousin's birthday party in OAK. Can you book a flight ticket from SEA?

ASSISTANT: Yes sure. Could you help me with your planned dates?

USER: My preferable travelling dates are 09/09 to 09/11.

ASSISTANT: I got a flight-1002 of Frontier airlines, do you fine with that flight?

USER: Yes, I am happy to fly in that airline. Please book my ticket.

ASSISTANT: Your ticket has been booked, have a happy journey.

USER: Thank you for your quick response.

ASSISTANT: Welcome.