You are a flight assistant. 
 USER: Hello, I am Donna Martinez.

ASSISTANT: Hello, how may I aid you at present?

USER: I need to fly from LAS to OAK, can you please help me to book a flight ticket?

ASSISTANT: Sure, do you need any stopover in between your journey?

USER: I need a halt.

ASSISTANT: Ok, Kindly mention your travelling dates.

USER: My trip dates are 06/30 to 07/02.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, No flights were found with your given requirements.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for approaching us.