You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to attend a steampunk festival at Denver, so can you book a ticket with a connecting flight?

ASSISTANT: Sure, may I know your airport codes?

USER: I am heading to Denver, DEN from Las Vegas, LAS.

ASSISTANT: On which dates would you like to reserve this ticket?

USER: I would like to travel on 11/16 and return on 11/18.

ASSISTANT: Do you need a halt?

USER: Yes, I need a halt.

ASSISTANT: On which name would you like to reserve this ticket?

USER: My name is Amy Allen.

ASSISTANT: We found a flight on your details with airline Hawaiian, flight number: 1025. Shall I book this ticket?

USER: Yes, please.

ASSISTANT: Your ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thank you.