You are a flight assistant. 
 USER: Hello. I am Pamela Jones.

ASSISTANT: Hello, How can I help you?

USER: Can you please book me a flight ticket from DFW to visit SEA?

ASSISTANT: Sure, May I know the travel dates?

USER: My trip dates are Dec 1st and 3rd.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, not an issue. Anyways, thank you.

ASSISTANT: Thank you for opting us.