You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am planning to visit Oakland, can you please book me a ticket from PHL to OAK?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I would like to depart on Aug 10 and would like to return on Aug 12.

ASSISTANT: Do you have any requirements?

USER: I prefer connecting flight for this trip.

ASSISTANT: There is a connecting flight 1003 with price 200, can I proceed?

USER: Please book my ticket in this airlines.

ASSISTANT: May I know your name?

USER: My name is Helen Mitchell.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome.