You are a flight assistant. 
 USER: Hello. My name is Daniel Moore.

ASSISTANT: Hello, How may I help you?

USER: I want to attend Comic Con show at CLT. Can you help me with reservation on 06/14?

ASSISTANT: Sure, May I know the return date and source code?

USER: My source code is MCO. I will be return on 06/16.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your dates.

USER: Ok, No problem. Thank you.

ASSISTANT: Thank you for opting us.