You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you please help me in booking my flight ticket from IAH to LAS?

ASSISTANT: When you are willing to travel?

USER: My planned travel dates are Mar 31 to April 02.

ASSISTANT: Do you have any connection limit?

USER: I prefer to fly in connected flight.

ASSISTANT: May, I know your good name?

USER: Myself, Micheal Hall.

ASSISTANT: Do you have any other requirement.

USER: No.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for reaching us.