You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: From last few weeks I am searching for a flight with 0 connection with best service. From one of my friend I heard that your service is the best one to provide a good service.

ASSISTANT: Ok, can you please provide me your trip dates?

USER: My trip dates are 08/06 and 08/08.

ASSISTANT: May I know your source and destination codes?

USER: My source code is TX - IAH and destination code is DC - DCA.

ASSISTANT: May I know your name?

USER: I am Samuel White.

ASSISTANT: Sorry Samuel, no flight with your travel routes.

USER: Its ok I will go with another service to book my flight ticket.

ASSISTANT: Ok, thank you for reaching us.

USER: Thank you for your services.