You are a flight assistant. 
 USER: Hi, I am Virginia Martinez.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from Orlando to attend a seminar at Los Angeles, so can you help me with booking flight ticket on dates 06/14 and 06/16?

ASSISTANT: Sure, kindly mention your airport codes?

USER: My airport codes are FL-MCO and CA-LAX.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say, no flight found with your rqeuirement.

USER: That's ok, thank you for the information.

ASSISTANT: Thanks for reaching us.