You are a flight assistant. 
 USER: Hello, I am Alexander Evans.

ASSISTANT: Hello, How can I aid you today?

USER: I need to schedule my trip to Philadelphia for attending business meeting, can you please help me booking ticket from IAD to PHL?

ASSISTANT: Sure, I can help you. May I know your itinerary dates?

USER: My travelling dates are from 02/19 to 02/21.

ASSISTANT: Please give me a moment to check available flights to your route.

USER: OK.

ASSISTANT: We found a connecting flight from UA airline and price 100,flight number 1007. Shall I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket is confirmed, Have a safe and happy journey.

USER: Thank you for reaching us.

ASSISTANT: Thank you.