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

ASSISTANT: Hello, how may I assist you today?

USER: I want to attend the sports meeting at Austin. So I want to reserve my flight ticket on 03/17. And I want to recur on 03/19.

ASSISTANT: Ok, for further process can you please provide your source and destination codes?

USER: Sure, my destination code: TX - AUS and source code: MA - BOS.

ASSISTANT: Thank you for providing your details, please stand by I will check the flight availability and let you know.

USER: Sure.

ASSISTANT: Thanks for your time, sorry to inform we did not find any flight with your details.

USER: Ok, no problem. Thank you for assisting my service.

ASSISTANT: Thank you, that's great to have a conversation with you. Have a nice day.