You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Could you please check the flight availability in economy class?

ASSISTANT: Sure. Can I have your name, please?

USER: My name is Joseph Adams.

ASSISTANT: May I know your depart and arrival dates?

USER: My trip dates are Sept 21 and Sept 23.

ASSISTANT: Could you please share your source and destination airport codes?

USER: My source is DEN and destination is PHL.

ASSISTANT: Let me know, if you have any other requirements.

USER: Please make sure that, flight with 1 connection and depart in the evening.

ASSISTANT: Just a minute, I will let you know the flight availability.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your time, there is a flight available with fare 200 and single connection in Southwest airline having 1016 as flight number. Shall I proceed?

USER: May I know the flight timings?

ASSISTANT: Depart time is 20:00 PM and return time is 8:00 AM.

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.