You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Myself Kimberly White. I need to travel from DCA to AUS, can you help me?

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates are Apr 24 to Apr 26.

ASSISTANT: Is there any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: May I know your connection limit?

USER: I need a single connection in my journey.

ASSISTANT: Do you have any other requirements?

USER: My departure time must be in evening.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.