You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Katherine Perez.

ASSISTANT: How may I help you?

USER: Can you please help me in booking a flight ticket from LAS to DTW locations?

ASSISTANT: On which dates you are willing to travel?

USER: My travelling dates are from 12/24 and 12/26.

ASSISTANT: There is no flights available.

USER: It's ok. Thank you for the information.

ASSISTANT: Most welcome.