You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please book me a ticket from ATL to DCA to meet my family?

ASSISTANT: Sure, please share me your travelling dates.

USER: I have planned to travel on Mar 20th and return on Mar 22nd.

ASSISTANT: Do you need any connection limit?

USER: I need one connection limit.

ASSISTANT: Do you need any class preference?

USER: No.

ASSISTANT: If you have any other specifications, let me know?

USER: I don't want any other preferences.

ASSISTANT: May I know your name for reservation?

USER: Myself Elizabeth Williams.

ASSISTANT: I found a connecting flight in business class with Delta Airlines and ticket fare of 900. Can I proceed?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket is confirmed in flight 1003.

USER: Thank you.

ASSISTANT: Thank you for choosing us.