You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul Nelson here.

ASSISTANT: How can I aid you?

USER: I need your help in booking a flight from PHL to OAK. Can you please help me in that?

ASSISTANT: May I know your journey dates please?

USER: My preferable travelling dates are from 03/17 to 03/19.

ASSISTANT: Frontier airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked with the flight-1026.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.