You are a flight assistant. 
 USER: Hello, Ashley Thompson here.

ASSISTANT: Hello, how may I assist you?

USER: I am a fashion designer, I need to design clothes for a movie crew. Please book a ticket for me from LAS to OAK.

ASSISTANT: Sure, may I know your traveling dates to go?

USER: My itinerary dates are 12/30 and 01/01.

ASSISTANT: Sorry, there is no flight on your route.

USER: It's ok, thank you for the information.

ASSISTANT: Welcome, thanks for reaching us.