You are a flight assistant. 
 USER: Hi. I am Scott White.

ASSISTANT: Hello, how may I render you at this moment?

USER: I am looking for a flight to Philadelphia, can you make me a flight ticket reservation from LAS to PHL?

ASSISTANT: Sure, I will render you. Please send your trip dates.

USER: My trip dates are from Jan 30th till Feb 1st.

ASSISTANT: Do you have any class preference?

USER: I am ok with any class.

ASSISTANT: Sorry, there is no flight scheduled on your requested dates.

USER: That's ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome, have a nice day.