You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am looking for a flight from IAD to LAX, can you please help me in booking?

ASSISTANT: Sure, can you please share me your travelling dates?

USER: My travelling dates are Sept 13 and Sept 15.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other specification?

USER: I want to depart in evening.

ASSISTANT: May I know your name?

USER: Sure, my name is Barbara Adams.

ASSISTANT: We found 1005 United Airlines with single connection and price of 800, shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.