You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: As I am an actor, I want to attend Film festival at Oakland, OAK. Can you please book a ticket from DTW?

ASSISTANT: Please share your trip dates?

USER: My travelling dates are Aug 3 and Aug 5.

ASSISTANT: Do you prefer any specifications?

USER: My return time is afternoon.

ASSISTANT: Sorry, no flights found on your route.

USER: Ok, Thank you for your help.

ASSISTANT: Please share your name for documentation?

USER: Sure, I am Angela Hall.

ASSISTANT: Thank you.