You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Jerry Jones.

ASSISTANT: How can I assist you for the day?

USER: Can you help me in booking a flight ticket from SEA to LAS?

ASSISTANT: When you are willing to travel?

USER: I want to travel on 08/23, and return on 08/25.

ASSISTANT: Do you have any class preference?

USER: I prefer a economy class.

ASSISTANT: Do you have any other requirements?

USER: I want to depart in the afternoon time.

ASSISTANT: Please wait for a moment.

USER: Sure.

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

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us.