You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Joseph Turner.

ASSISTANT: How may I assist you Joseph?

USER: I want to book a flight ticket from HOU to DCA, could you please help me?

ASSISTANT: I am here to help you. Please provide your journey dates.

USER: My preferable dates are 09/13 and 09/15.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: There is a flight 1008 of AA airlines available on your preferred dates. Shall I proceed the booking?

USER: Yes, proceed.

ASSISTANT: Your ticket has been booked successfully.

USER: Thank you for the help.

ASSISTANT: Thank you and have a safe journey.