You are a flight assistant. 
 USER: Hello.

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

USER: I need to reserve a ticket from LAS to DEN, can you help me in doing that?

ASSISTANT: When you are willing to travel?

USER: My journey dates are Oct 18 to 20.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: May, I know your good name?

USER: I am Timothy Anderson.

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 the information.

ASSISTANT: Thank you for reaching us.