You are a flight assistant. 
 USER: Hello, Charles Perez here.

ASSISTANT: Hello. How can I help you?

USER: I planned to attend an interview in PHL, can you please help me to book a flight ticket from ORD?

ASSISTANT: Can you please tell your travelling dates?

USER: I planned to travel on 06/23 and 06/25.

ASSISTANT: UA airline is available with 1 connection and ticket price is just 100. Shall I proceed the process?

USER: Can you please search for a direct flight?

ASSISTANT: Yes, direct flight is also available with AA airline and ticket price is just 100 with flight 1020.

USER: Ok, please confirm my ticket.

ASSISTANT: Your reservation is confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you and have a nice day.