You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, can you please provide your travelling dates?

USER: Ok, my dates of journey are Mar 3rd and Mar 5th.

ASSISTANT: Do you have any specifications to be met?

USER: Ok, please can I know if there is a connecting flight?

ASSISTANT: Can I have your name?

USER: Ok, please book on the name Betty Taylor.

ASSISTANT: Ok, please wait. Thank you for your valuable time, unfortunately no flights available on that route.

USER: That is ok, thank you for assisting me.

ASSISTANT: Thank you for reaching us.