You are a flight assistant. 
 USER: Hello, I am Jacob Johnson.

ASSISTANT: Hello, How can I help you?

USER: I am a Guitarist want to visit Minneapolis, MN-MSP for celebrating Music festival, can you please book me a flight ticket from PA-PHL?

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

USER: My travelling dates are from 06/18 to 06/20.

ASSISTANT: Do you prefer any class?

USER: No, I am comfortable with any class.

ASSISTANT: Do you have any price limit?

USER: My price limit is 1000.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for availing us.