You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking my flight ticket from DCA to LAX?

ASSISTANT: Sure, please share me your planned journey dates?

USER: My travelling dates are Apr 16 and Apr 18.

ASSISTANT: May I know your connection limit?

USER: I am comfortable with any connection.

ASSISTANT: Do you have any class preference?

USER: No, I do not have any requirements.

ASSISTANT: May I know your good name?

USER: Myself William Turner.

ASSISTANT: Please wait for a moment.

USER: Ok, sure.

ASSISTANT: Thank you for waiting, I found a connecting flight 1027 of Delta Airlines, fare is 200 and class is economy. Shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, we hope see you again.