You are a flight assistant. 
 USER: Hi, Angela Parker here.

ASSISTANT: Hello. How may I render you today?

USER: I would like to book a direct flight as I have an Important work at Office, so please assist me in booking a ticket to IL - ORD.

ASSISTANT: Sure, I'll assist you in booking.

USER: Ok.

ASSISTANT: Kindly mention your planned travelling dates to proceed further.

USER: I planned to start on 04/01 and intend to return on 04/03.

ASSISTANT: Please share your source airport code.

USER: My source is Charlotte, NC - CLT.

ASSISTANT: May I know the fare preference?

USER: I can pay up to 1000.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we are unable to provide flights in between your journey routes due to heavy rain fall at your destination point.

USER: No issues, thanks for your kind service.

ASSISTANT: Thank you for reaching us.