You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to attend a concert at New York, can you please help me to book my flight ticket from IAD to LGA?

ASSISTANT: Sure, may I know your travel dates please?

USER: I will depart on 08/16 and return on 08/18.

ASSISTANT: Would you like to fly with zero connection? Because presently only that flight is available.

USER: No, please check for the flight with 1 connection.

ASSISTANT: Sorry it is not available.

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you. May I know your name please for record purpose?

USER: Sure, my name is Barbara Parker.

ASSISTANT: Thank you Barbara.

USER: You are welcome.