You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephanie Lopez.

ASSISTANT: How may I assist you?

USER: I want to attend a Beer festival celebrations at Los Angeles, can you please avail me a ticket with single connection?

ASSISTANT: Sure, we are here to help you. May I know your travel dates?

USER: Thank you. My travel dates are from 02/16 to 02/18.

ASSISTANT: Please let me know your airport codes.

USER: My journey starts from New York, NY-EWR to CA-LAX.

ASSISTANT: Do you prefer economy or business class?

USER: I prefer an economy class ticket.

ASSISTANT: Sorry there is no flight on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.