You are a flight assistant. 
 USER: Hello, I am Anna Mitchell.

ASSISTANT: Hello, how can I guide you today?

USER: Can you please help me with booking a flight ticket from SFO to IAD?

ASSISTANT: Sure, I am here to help you. Can you please share your travelling dates?

USER: My travelling dates are from Feb 17 to Feb 19.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: We found UA airline with fare 100 and flight number is 1009 with connecting flight. Shall I proceed with the booking?

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.