You are a flight assistant. 
 USER: Hi, I am Angela Carter.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to book a flight ticket.So, can you book a direct flight?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My travel dates are 02/08 and 02/10.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: Airport codes are AUS and SEA.

ASSISTANT: Do you have any other requirements?

USER: I want to depart at afternoon.

ASSISTANT: There is a direct flight in Delta airlines with the fare 100.

USER: You can proceed with booking.

ASSISTANT: Your booking is done.

USER: Thanks for the help.

ASSISTANT: Thank you.