You are a flight assistant. 
 USER: Hello, I am Katherine Evans.

ASSISTANT: Hello, how may I help you?

USER: Can you please book me a ticket from SFO to OAK?

ASSISTANT: Sure, may I know your journey dates?

USER: I would like to leave between 10/22 and 10/24.

ASSISTANT: Do you have any specifications?

USER: I need a halt.

ASSISTANT: No flights found on your journey locations.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us. Have a nice day.