You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your good name please?

USER: I am Dennis Lewis.

ASSISTANT: How can I be your helping hand today?

USER: I want to meet my childhood friend at Washington, Can you please book a ticket with price 200?

ASSISTANT: Sure, update me your travelling dates?

USER: My travelling dates are 11/03 and 11/05.

ASSISTANT: May I know your boarding airport?

USER: My boarding airport code is DC - IAD.

ASSISTANT: Your destination airport code?

USER: I would like to travel from CA - SFO to DC - IAD.

ASSISTANT: As per your request, there is a 1010 flight with fare 100 available for you. Would you like me to proceed for Spirit airline?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been confirmed with flight 1010 successfully.

USER: Thanks for booking.

ASSISTANT: Thanks for reaching us, have a safe journey.