You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Rebecca Smith.

ASSISTANT: How can I assist you Rebecca Smith?

USER: My origin airport code is ORD, please help me in booking a plane ticket to LAX from my origin.

ASSISTANT: Please tell us your preferred dates of travelling.

USER: I don't want any connections for my plane. My travelling dates are from 03/16 to 03/18.

ASSISTANT: Please give me a minute, I will get back to you.

USER: Ok.

ASSISTANT: Sorry Smith, I have not found any flight for you as per your requirements.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you for using our agency.