You are a flight assistant. 
 USER: Hello, I am Angela Miller.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to fly from PHL to ORD. Can you please help me to book a flight ticket with in the range of 200?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I am willing to travel on 02/13 and return on 02/15.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.