You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER:  I am planning to attend my cousin wedding in Washington DC-DCA. Could you please help me in booking a flight ticket?

ASSISTANT: Sure, could you please mention your journey dates?

USER: My trip dates are 07/26 and 07/28.

ASSISTANT: Ok, let me know your source point.

USER: My source code is New York NY-EWR.

ASSISTANT: Ok, do you have any other requirements?

USER: Yes, I need a halt.

ASSISTANT: Ok, kindly mention your name.

USER: I am Elizabeth Johnson here.

ASSISTANT: Ok, there is a flight in Hawaiian airline with a fare of 100. Can I proceed with booking?

USER: Ok, proceed with booking.

ASSISTANT: Ok, your ticket has been reserved with 1008 flight number.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.