You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Margaret Taylor.

ASSISTANT: Margaret, how can I assist you?

USER: I am planning to travel from MCO to LAS, could you please help me with that?

ASSISTANT: Can you provide me your travelling dates?

USER: My departure date is 09/18 and return date is 09/20.

ASSISTANT: I am sorry Taylor, there is no flight available with your details.

USER: That's ok. Thank you for the information.

ASSISTANT: Thank you for approaching.