You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need a connecting flight from ATL to DCA. Can you help me in that?

ASSISTANT: Sure, may I know your depart and return timings?

USER: My depart time is in the evening.

ASSISTANT: On which name do you like to reserve this ticket?

USER: Myself Timothy King.

ASSISTANT: At what dates do you like to travel?

USER: My trip dates are Feb 29 to Mar 2.

ASSISTANT: Do you prefer economy or business class?

USER: I need to travel in business class.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no flight on your details.

USER: Ok, not an issue. I will choose alternate way to reach my destination. Thank you for your information.

ASSISTANT: Thank you.