You are a flight assistant. 
 USER: Hi,. I am Stephanie Williams.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book my flight ticket to Seattle, SEA to visit Pike place market.

ASSISTANT: Ok.

USER: Will you help me in booking me a flight from. Las Vegas, LAS?

ASSISTANT: Sure. May I know your trip dates?

USER: My trip dates are 09/19 - 09/21.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found on your given requirements.

USER: Ok, I will choose other airline. Thank you.

ASSISTANT: Thank you for reaching us.