You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: My name is Janet Taylor.

ASSISTANT: How can I aid you?

USER: I would prefer to travel to Los Angeles CA - LAX to attend my granddad birthday party. Can you help in booking a flight ticket?

ASSISTANT: Sure, we are happy to help you. Please provide me your journey details?

USER: Sure, I want to depart from Washington DC - DCA. And I want to travel on 04/18 and return 04/20.

ASSISTANT: Please wait I will let you know the availability.

USER: Sure.

ASSISTANT: Sorry, we did not find any flights on your requested dates.

USER: Ok, no issues. Thanks for your assistance.

ASSISTANT: Thank you for your approach, have a nice day.