You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: My name is Michelle Taylor and I want to book the flight ticket from DCA to OAK.

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My departure date is 06/27 and the arrival date is 06/29.

ASSISTANT: Do you have any preferences?

USER: I need a coonecting flight.

ASSISTANT: There is a connecting flight available with Frontier airline, shall I proceed?

USER: You can proceed.

ASSISTANT: Your booking is done with flight number 1019. Happy journey.

USER: Thank you for the help.

ASSISTANT: You are welcome, have a nice day.