You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello.

USER: I am Kathleen Garcia.

ASSISTANT: How can I assist you?

USER: I want to book a direct flight ticket to attend an emergency case. Can you help me?

ASSISTANT: Yes, I will help you in that. Please share your travelling dates.

USER: 12/27 and 12/29 are my travelling dates.

ASSISTANT: Ok, can I know your airport codes for further process?

USER: SEA and LAX are my airport codes.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Thank you for being patient. Sorry to inform we didn't find any flights with your details.

USER: No issue. Thank you.

ASSISTANT: Thank you for opting us, have a good day.