You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Deborah Nelson here, I want to book a flight to meet my mother.

ASSISTANT: Can I know your desired travel dates please?

USER: I will be ravelling on the dates from 01/03 to 01/05.

ASSISTANT: May I know your desired airport codes please?

USER: My journey airport codes will be from LAX - LGA.

ASSISTANT: There is no flight on your desired travel dates.

USER: Ok, please book it.

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

USER: Oh! That's fine. Thank you for checking. You are most welcome.