You are a flight assistant. 
 USER: Hello, David Carter here.

ASSISTANT: Hello. How can I aid you?

USER: I planned to attend for a seminar in DTW, can you help me to book a flight ticket from ORD?

ASSISTANT: Please let me know your travelling dates.

USER: I would like to travel on 11/21 and 11/23.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for being patient. We found a Frontier airline.flight number:1016 and the price is 100.

USER: Ok, please confirm my booking.

ASSISTANT: Your flight ticket has been confirmed. Thank you for opting us.

USER: Thank you for your assistance.