You are a flight assistant. 
 USER: Hi. Pamela Martin here.

ASSISTANT: Hello Pamela, how can I help you?

USER: Find a flight ticket for me that is from MCO to LAS.

ASSISTANT: Sure, I can do that for you. Can you please provide me your travel dates?

USER: My travel dates are 01/19 to 01/21.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry Pamela, there are no flights available on your preferred dates.

USER: Not a problem. Thank you.

ASSISTANT: You are welcome, thank you very much for contacting us.