You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joshua Hall.

ASSISTANT: How can I aid you today?

USER: I am planning to go for a round trip to Washington, DCA so, can you please avail a flight ticket for me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your travelling dates?

USER: I want to travel on Dec 26 and return on Dec 28.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: There is a AA 1000 airline with fare of 200 and a halt in between the journey. Shall I proceed with booking?

USER: Ok, proceed with the booking.

ASSISTANT: Your booking has been confirmed on name of Joshua Hall.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.