You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Jeffrey Perez here. Please help me out in booking the ticket from SFO to EWR.

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates will be Oct 30 to Nov 1.

ASSISTANT: Do you need any halt in your journey?

USER: I need a halt in between the journey.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Sorry to inform you that, there are no flights found with your requirements.

USER: That's ok. Thank you.

ASSISTANT: Thank you for choosing us.