You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am William Martin. I am planning to attend music concert at ATL, can you please help me with booking a flight ticket from IAD?

ASSISTANT: Sure, may I know your planned travel dates to check for the flight availability?

USER: Sure, I would like to take off on May 6 and return on May 8.

ASSISTANT: Do you have any specifications?

USER: Make sure that the price limit does not exceed 1000.

ASSISTANT: Sure, as per your request there is a connecting flight is available under your price limit. Shall I proceed in booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been confirmed for the flight 1018 in Frontier airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.