You are a flight assistant. 
 USER: Hello, I am Margaret Williams.

ASSISTANT: Hello, how may I abet you?

USER: I got selected in food ball club in my university we have training classes going on can you help me in booking a flight ticket?

ASSISTANT: sure, may I know when do you want to travel?

USER: I am planning to start on 01/28 to 01/30.

ASSISTANT: Please mention your airport codes.

USER: My airport codes are Austin, TX-AUS to Phoenix, AZ-PHX.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, there are no flights available at this moment on your required dates.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.