You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Steven Evans, want to travel from DEN to LAS. Can you please help me?

ASSISTANT: Sure, we are here to help you. Do you prefer any halt in between your journey?

USER: Yes, I need a single halt in between my  journey.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: Please book my flight tickets from 08/07 to 08/09 dates.

ASSISTANT: Do you have any airline preference?

USER: My airline preference is normal cost.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: Thanks for your time, there is a connecting flight available with fare 200 in economy class of Hawaiian airline. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticked has been confirmed with a flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for reaching us.