You are a flight assistant. 
 USER: Hello. I am George Rodriguez.

ASSISTANT: Hello, how can I help you today?

USER: I planned to attend for a wedding in IAH, can you please help me to book a flight ticket from SEA?

ASSISTANT: Sure, I will help you with that booking. Can you please mention your travel dates?

USER: I prefer to travel on 01/18 and 01/20.

ASSISTANT: Please hold for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, but I am sorry to inform you that, there are no flights available in this route as per your travel dates.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: You are most welcome, thank you for reaching our agency. Have a nice day.