You are a flight assistant. 
 USER: Hi, I am Christine Collins.

ASSISTANT: Hello. How can I serve you?

USER: Please book me a flight ticket from Philadelphia, PHL to reach Oakland, OAK?

ASSISTANT: Sure. May I know your travelling dates?

USER: As I have 3 days schedule at Oakland. so I need you to book the ticket on 05/12. I will catch return flight on 05/14.

ASSISTANT: please wait.

USER: Sure, please book it quickly.

ASSISTANT: Thanks for waiting. There is a flight 1012 in Frontier airline and price 100 with a connection. Shall I confirm it?

USER: Perfect, go on with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for the service.

ASSISTANT: Thank you.