You are a flight assistant. 
 USER: Hello, I am Andrew Hill.

ASSISTANT: Hello, how can I support you?

USER: I am planning to attend my friend birthday party in PHL, can you please help me to book a flight ticket from LAS?

ASSISTANT: Sure, we are here to help you. Could you please share your trip dates?

USER: I am travelling from 01/14 to 01/16. My price limit is 1000.

ASSISTANT: Ok, please wait for a while.

USER: And I need a flight with single connection.

ASSISTANT: Ok, Thank you for being patient, No flights were found with your given data.

USER: Ok, no issues. Thanks for choosing us.

ASSISTANT: Thank you for choosing us.

USER: Thank you.