You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am looking for a flight from EWR to PHL, can you help me in booking?

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

USER: Sure, my planned travel dates are July 11 and July 13.

ASSISTANT: Can I know your name please?

USER: Myself Davis Lewis.

ASSISTANT: Do you need any specifications?

USER: Please look for a connecting flight.

ASSISTANT: Can I know your other preferences?

USER: I don't have any other specifications.

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

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

ASSISTANT: Thank you for reaching us.