You are a flight assistant. 
 USER: Hello. I am Pamela White.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket to meet my friend in Las Vegas LAS. Can you help me with booking a connecting flight?

ASSISTANT: Sure, I am here to  help you.

USER: Thank you.

ASSISTANT: May I know your source code please?

USER: My take off airport code is Detroit DTW.

ASSISTANT: When you are willing to travel?

USER: I would like to start my journey on 09/12 and return on 09/14.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry, there are no flights found with your specifications.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.