You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am looking for a normal cost airlines flight from SFO to DEN, can you help me out in booking the flight ticket?

ASSISTANT: May I know your travelling dates please?

USER: My trip dates are from Nov 27th till Nov 29th.

ASSISTANT: Do you have any specifications?

USER: I comfortable with 1 stop over.

ASSISTANT: May I know your airline preference?

USER: I want normal cost airlines.

ASSISTANT: Do you have any departure and return timing?

USER: No.

ASSISTANT: Do you have any class preferences?

USER: No, thanks. I don't have any more requirement ok. Make it fast. Don't check the patience of the customer.

ASSISTANT: May I know your name please?

USER: Ok, myself Stephanie Adams.

ASSISTANT: I am sorry no flights found on your name?

USER: You ask me many questions, now are saying that there is no flight. I face this problem every time with your agency. Anyway thank you for your information.