You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: Can you please assist me in booking a flight ticket to HOU from DTW on the name of Ashley Davis?

ASSISTANT: Sure, can I know your preferable dates?

USER: My preferred dates are from 11/06 to 11/08.

ASSISTANT: I am sorry to inform you that there are no flights available. Can I know your name?

USER: Ok, no issues. Already mentioned above.

ASSISTANT: Thank you, have a good day.

USER: Thank you.