You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to book a flight ticket to CLT from PHL, can you please help me out?

ASSISTANT: Sure, please help me with your travel dates.

USER: Sure, my planned travelling dates are Nov 08 and Nov 10.

ASSISTANT: Ok, may I know your name?

USER: Sure, my name is Charles Mitchell.

ASSISTANT: Do you have any class preferences?

USER: No.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry, we did not find any flights for you.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.