You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Cynthia Davis.

ASSISTANT: How can I help you Cynthia Davis?

USER: I have to attend my friend's wedding at PHL, could you please help me with booking a flight ticket from EWR?

ASSISTANT: Sure, please provide your journey dates.

USER: I would like to take off on 04/09 and return on 04/11.

ASSISTANT: Wait a moment please.

USER: Make sure that the price limit should not exceed 200.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: That's ok, no issues. Thank you for the information.

ASSISTANT: Thank you, have a great day.