You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know how best I can serve you today?

USER: I am looking for a flight from DEN to AUS, can you help me in booking?

ASSISTANT: Sure, we are glad to assist you in booking. Do you need a break in between your journey?

USER: Thank you.

ASSISTANT: Please share your planned travelling dates to proceed further.

USER: Actually, I need a direct flight as I need to attend for an emergency case. Sure, my planned travel dates are Oct 26 and Oct 28.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No, thank you for asking.

ASSISTANT: May I know your name please?

USER: Myself Raymond Williams.

ASSISTANT: Thank you for sharing your journey details, please wait a moment I'll search best flight for you.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by Delta airline that matches your essential details with the flight number-1023. Shall I book a connecting flight?

USER: That's fine, please proceed with booking.

ASSISTANT: Your seat has been reserved and your e-ticket will sent to your registered email address.

USER: Thank you for the service.

ASSISTANT: It's pleasure to serve you.