You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, we are pleased to serve you.

USER: Thank you.

ASSISTANT: Can you share me your travel dates?

USER: My travel dates are from Aug 25th to Aug 27th.

ASSISTANT: Is there any specific timing for you to travel?

USER: Yes, I want to return in the morning.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you need any lay by in your journey?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry to inform you that, there are no flights available with your requested dates.

USER: Ok, no problem.

ASSISTANT: For documentation, may I know your name please?

USER: Thank you for your information.

ASSISTANT: Thank you for availing us.

USER: I am Cynthia Martinez.

ASSISTANT: Thank you.