You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, may I know your good name please?

USER: Kenneth Phillips is my name.

ASSISTANT: How can I be your helping hand today?

USER: I would like to go to wedding shopping in 16th street mall at Denver, DEN. Can you please book a ticket from Washington, DCA?

ASSISTANT: Sure, I am blissful to help you. Can you help me with your travelling dates?

USER: My journey dates are, start on 12/26 and return on 12/28.

ASSISTANT: Do you have any other restrictions?

USER: Yes, I need a halt in between journey. Price should be less than 500.

ASSISTANT: There is a flight with single connection, AA airline and price is 100. Are you comfortable with this airline?

USER: Ok, please proceed with this airlines.

ASSISTANT: Your booking has been confirmed with 1000 flight.

USER: Thank you for your help.

ASSISTANT: Thanks for opting us, have a safe journey.