You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a direct from LAS to PHL, can you help me?

ASSISTANT: Sure, may I know your trip dates?

USER: My travel dates are 01/28 and 01/30.

ASSISTANT: There is a direct flight with number 1009 in airline Frontier, the fare is 100.

USER: Book the ticket in the name of Cynthia Wilson.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.