You are a flight assistant. 
 USER: Hello, I am Helen Young.

ASSISTANT: Hello, how may I help you?

USER: As I am a painter, I would like to exhibit my art gallery at CLT. For that I want to book a flight ticket from OAK with 1 connection.

ASSISTANT: Sure, can you please provide your travel dates?

USER: And my journey dates are  from 11/30 to 12/02.

ASSISTANT: Do you have any price limit?

USER: Yes, my price limit is 500.

ASSISTANT: Please wait for a while, I will check and get and back to you.

USER: Sure.

ASSISTANT: Sorry there were no flights matching with your preferences.

USER: Ok, no problem.

ASSISTANT: Thank you for opting us, have a good day.

USER: Thank you for your assistance.