You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. What kind of service are you looking for?

USER: I am Dennis Allen.

ASSISTANT: Ok.

USER: I want to book a ticket from LGA to SEA to meet my friends, can you please help me that?

ASSISTANT: Sure, I will help you. What dates you have planned to travel?

USER: I have planned my dates on 09/24 and 09/26.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT:  Thanks for waiting, there are no flights available at this moment matching your particulars.

USER: Ok, no problem. Thank you so much.

ASSISTANT:  Thanks for approaching us.