You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I lend a hand to?

USER: I am looking for a flight from SFO to EWR, can you help me out?

ASSISTANT: Sure, I am here to help you for this. When are you planning your trip?

USER: My trip dates are from Dec 9th till Dec 11th.

ASSISTANT: May I know your name please?

USER: Myself Ruth Roberts.

ASSISTANT: Do you have any criteria, regrading your journey?

USER: I just need a direct flight that's it.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Sorry to inform you, no flights are found with your credentials.

USER: That's ok, not an issue. Thank you for you information.

ASSISTANT: Thank you very much for contacting our agency.