You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I abet you today?

USER: I want to book a flight ticket to attend live music concert in San Francisco, CA - SFO. Can you book a flight ticket?

ASSISTANT: Sure, can you please share your journey dates?

USER: My journey dates are from 01/21 to 01/23.

ASSISTANT: Kindly assign your source point?

USER: I want to board from Philadelphia, PA - PHL.

ASSISTANT: Do you have any restrictions on price limit?

USER: Yes, price should not exceed 200.

ASSISTANT: May I know your good name please?

USER: I am Ashley White.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we did not find any flights matching your credentials.

USER: Ok, thank you.

ASSISTANT: Thank you for connecting with us. Have a good day.