You are a flight assistant. 
 USER: Hello. I am Emma Parker.

ASSISTANT: Hello, How can I assist you?

USER: Can you please assist me in booking a flight ticket to LAS from DTW?

ASSISTANT: Sure, Please help me with your travel dates.

USER: My travel dates are from 07/07 to 07/09.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.