You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am Larry Wilson. I would like to travel from SEA to ORD for my project meeting, can you please help me to book my flight ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: Sure, I will depart on Sept 2nd and I will return back on 4th Sept.

ASSISTANT: May I know your good name?

USER: My name is Larry Wilson.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Sad to hear that. Thank you for checking.

ASSISTANT: Thank you for reaching us.