You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Melissa Nelson here.

ASSISTANT: How can I assist you today?

USER: Please book me a plane ticket to LGA from OAK.

ASSISTANT: Sure, will you please provide your travelling dates that you want to travel?

USER: I am planning from 10/19 to 10/21.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. As per your request, there is a flight with price 200 and the connections 1 is available.

USER: Please proceed.

ASSISTANT: Your ticket is booked.The flight number is 1009 and the airline is Frontier.

USER: Thank you.

ASSISTANT: Welcome, have a great day.