You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Margret Taylor.

ASSISTANT: How can I assist you today?

USER: I want to book a flight ticket to attend a party which is going to held at CA-LAX from NY-EWR.

ASSISTANT: Sure Taylor, may I know you travel dates please.

USER: 09/18 and 09/20 are my travelling dates.

ASSISTANT: Sorry Taylor,  there is no flight avalible at those locations.

USER: No issue. Thank you for your response.

ASSISTANT: Thank you for choosing our agency.