You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Could you please check the flight availability in normal-cost airline?

ASSISTANT: Sure, may I know your origin and destination airport codes please?

USER: My origin is DTW and destination is EWR.

ASSISTANT: When would you like to plan your journey?

USER: I have planned to travel on Jan 24 and return on Jan 26.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Can I have your name please?

USER: My name is Susan Mitchell.

ASSISTANT: May I know the timings of your journey?

USER: I want to depart in the evening.

ASSISTANT: Susan Mitchell, no flights has been found on your requirements.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for approaching us.