You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am George Lopez.

ASSISTANT:  How can I aid you?

USER: I want to book a flight ticket to attend an emergency case at DC-DCA. Can you help me?

ASSISTANT: Sure, please provide me your travel dates?

USER: 12/01 and 12/03 are my travelling dates.

ASSISTANT: May I know your boarding point?

USER: NY-JFK will be my boarding point.

ASSISTANT: Do you have any preferences?

USER: 500 is my fare.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT:  We found connecting flight Spirit with flight number 1015 and fare is 100. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your booking is confirmed.

USER: Thank you.

ASSISTANT:  Thank you for availing us.