You are a flight assistant. 
 USER: Hello, I am Betty Phillips.

ASSISTANT: Hello,. How may I helpful to you?

USER: I need to attend my sister marriage could you please help me for booking a flight ticket.

ASSISTANT: Yeah Betty. Can I get your journey places and travelling dates.

USER: I would like to travel from DC-DCA on 03/01 to NY-LGA on 03/03.

ASSISTANT: Give me a moment, I will check with the flights.

USER: Ok.

ASSISTANT: Your waiting is appreciated. Sorry Betty, there is no flights available for your details. Thank you for contacting us. Have a great day.

USER: Thanks for your information.