You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to visit Oakland, can you please reserve me a flight ticket from JFK to OAK?

ASSISTANT: Sure, We are here to assist you.

USER: Thank you.

ASSISTANT: Can I know trip dates?

USER: My planned dates of journey are Sept 26 and Sept 28.

ASSISTANT: Are you okay with any connecting flight?

USER: Yes, I am ok with connecting flight.

ASSISTANT: May I know your name?

USER: My name is Lisa Mitchell.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: I prefer economy class flight.

ASSISTANT: We found a connecting flight with an Frontier airlines, flight number:1020.

USER: Please reserve my ticket in this flight.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.