You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Kathleen Miller here. I will be booking a flight for meeting my grandmother as she is suffering form health issues, and currently she is in the hospital.

ASSISTANT: Ok, I can help you. Can I know about your travel dates?

USER: 09/30 to 10/02 will be my dates for travelling.

ASSISTANT: Can I know your travelling airport codes?

USER: My location airport codes are from PHL to LAX.

ASSISTANT: Give me a second, I will revert back to you.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates. Sorry for the inconvenience.

USER: That's ok, thank you for assisting me.

ASSISTANT: You are welcome.