You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: My name is John Jones, I want to book a flight for my friend marriage, can you help me in flight booking?

ASSISTANT: Sure, I am here to help you. What are your travelling points?

USER: My destination to Phoenix, AZ - PHX from Washington, DC - DCA.

ASSISTANT: OK, When do you schedule your travelling dates?

USER: My travelling dates are from 12/21 to 12/23, I want to single connection and my price limit is 1000.

ASSISTANT: OK, please wait moment.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry there are flights are found.

USER: Thank you, for giving information.

ASSISTANT: Thanks for connecting us, have a great day.