You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jessica Green.

ASSISTANT: How may I help you out?

USER: Can you book a flight ticket for me from PHL to EWR to meet my parents?

ASSISTANT: Sure, I will help you in booking the ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: My dates are 02/27 and return back on 02/29.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Ok, no issues with that one. I can reach another agencies, thanks for your information.

ASSISTANT: Thank you for choosing us.

USER: Welcome.