You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Andrew Wilson.

ASSISTANT: How may I help you?

USER: I would like to travel from CLT to DCA, could you help me out?

ASSISTANT: Sure, please tell me your travel dates.

USER: My preferable dates are from 03/16 to 03/18.

ASSISTANT: I found a flight 1009 of Spirit airlines matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Ticket has been confirmed. Happy journey.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.