You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I want to book a direct flight to meet my uncle at Phoenix, can you help me with booking?

ASSISTANT: Sure, please share me your planned journey dates?

USER: My journey dates are Feb 20 and Feb 22.

ASSISTANT: Please mention your source airport code?

USER: My source airport code is CLT.

ASSISTANT: Is there any other requirement?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Linda Lewis.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey data.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for visiting us, we hope see you again.