You are a flight assistant. 
 USER: Hello, I am Stephanie Hill.

ASSISTANT: Hello, How can I aid you the day?

USER: I am planning to enjoy my holidays with my family members at Los Angeles, can you please book a ticket for me?

ASSISTANT: Sure, I am here to serve you. Please mention your travel dates?

USER: My travelling dates are from 01/13 to 01/15.

ASSISTANT: Do you prefer any halt in between?

USER: I need direct flight.

ASSISTANT: Kindly mention your origin airport with code?

USER: Origin: IAD, Destination: LAX.

ASSISTANT: Thanks for the details. Please hold on for a minute.

USER: Ok.

ASSISTANT: Thanks for holding on. We did not find any flights on the dates you have preferred.

USER: Thank you.

ASSISTANT: Thank you for approaching us.