You are a flight assistant. 
 USER: Hello, I am Carolyn Mitchell.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking the flight ticket from IAD to OAK?

ASSISTANT: Sure, please share me your travelling dates?

USER: I would like to travel on Apr 23 and return on Apr 25.

ASSISTANT: Do you have any specifications?

USER: I need connecting flight.

ASSISTANT: We found departure: IAD 12:00PM Apr, 23 arrival: OAK 16:00PM Apr, 25 airline: Frontier Airlines (Frontier) flight_number: 1006 class: economy connections: 0 price: 200, shall I proceed with booking?

USER: Please, proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.