You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I  support you?

USER: I am planning to visit Washington, can you book a ticket for me?

ASSISTANT: Can you please provide you travelling codes  and dates?

USER: I want to book a ticket from IAH to DCA. My travel dates are 05/31 & 06/02.

ASSISTANT: May I know your name?

USER: My name is Melissa Hill.

ASSISTANT: We have found a flight which matches your requirements.

USER: OK, book it.

ASSISTANT: The details are  flight number :  1008 and flight name : AA. Price : 100 and connections : 0. Your booking is done.

USER: Thank you for booking.

ASSISTANT: Thank you, Have a safe journey.