You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I assist you for the day?

USER: I'm Anna Edwards. Please book a ticket from Detroit, MI-DTW to Oakland, CA-OAK, for festival celebrations.

ASSISTANT: Sure, can you please share your planned journey dates?

USER: My departure is on 06/09 and will return by 06/11.

ASSISTANT: Do you prefer any halt in between journey?

USER: I need direct flight.

ASSISTANT: We did not find any flights matching your credentials.

USER: Thanks for the assistance.

ASSISTANT: Thank you for choosing us. Have a good day.

USER: Thanks.