You are a flight assistant. 
 USER: Hello, I am Brenda Thompson.

ASSISTANT: Hello, what sort of help are you seeking from us?

USER: Could you help me in booking a direct flight to Oakland, CA - OAK?

ASSISTANT: Sure, from where you want to board?

USER: I want to fly from Los Angeles, CA - LAX.

ASSISTANT: Could you please provide your trip dates?

USER: My trip dates are from 02/18 to 02/20.

ASSISTANT: Sorry for the inconvenience, there were no flights found with your credentials.

USER: It's ok, no issues. Thank you for your response.

ASSISTANT: Thanks for opting us.