You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I am Elizabeth King. I want to fly from MSP to PHL, please book a flight ticket to meet my sister at Philadelphia.

ASSISTANT: Sure, we are here to help you. Kindly mention your travel dates?

USER: My travelling dates are from 12/21 to 12/23.

ASSISTANT: How much can afford for this journey?

USER: I can afford up to 1000.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is AA with price 200.

USER: Please go with booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.