You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you today?

USER: I am Deborah Phillips. I would like to attend the Mardi Gras Carnival with my brother which is in Dallas & Fort Worth. I would have to fly from CA-LAX to TX-DFW.

ASSISTANT: Sure, help me with your travelling dates?

USER: My arrival date is 02/28 and departure date is 02/26.

ASSISTANT: Ok, sorry to notify you that we have not found any flights matching your requests.

USER: Thank you for your quick response.

ASSISTANT: Thank you for reaching us.