You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Michael Moore here.

ASSISTANT: How can I help you today?

USER: I want to reserve my ticket from DTW to LAX, can you please help me in this?

ASSISTANT: I understand your request and will be happy to help you. May I know on what dates you need booking?

USER: Sure, my dates of travel are from 02/13 to 02/15.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry for the inconvenience, no flights available as per your requested dates.

USER: Ok, that's fine.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your service.