You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I succour you today?

USER: I need to go to Oakland to visit Mountain view cemetery with my college friends on 03/07. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, can I know your return date?

USER: I would like to catch a return flight on 03/09.

ASSISTANT: Can I know your airport codes?

USER: My source is Detroit, DTW and destination is Oakland, OAK.

ASSISTANT: We found a flight of Spirit airline, flight number 1009 with the fare of 100.

USER: Ok, proceed with my booking.

ASSISTANT: May I know your name?

USER: My name is Patricia Clark.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you.