You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Matthew Martinez. I would like to travel from LAS to DTW, could you help me out?

ASSISTANT: Sure, may I know your travelling dates?

USER: My preferable dates are from 10/07 to 10/09.

ASSISTANT: Sorry to inform you, there is no reservation found with your name in our records.

USER: That's ok. Thank you for your time.

ASSISTANT: Most welcome.