You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth White.

ASSISTANT: How may I help you out?

USER: I need to attend a family function at EWR, can you please help me in booking from DEN?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travel dates are from May 07 to May 09.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.