You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Pamela Green. I want to book a flight ticket from SFO to EWR. Could you help me in booking?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: My travelling dates are from Oct 03-05.

ASSISTANT: Do you prefer any stopover in between journey?

USER: Yes, I need a single stopover.

ASSISTANT: Is there any class preference for you?

USER: No, I don't have any class preference, but I have to my depart time should be in the evening.

ASSISTANT: Would you like to travel in normal-cost airline or low-cost airline?

USER: I am comfort with both.

ASSISTANT: Thanks for providing details, sorry no flights are available on your journey routes.

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

ASSISTANT: Thank you for choosing us.