You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I need to book a flight ticket from DEN to SFO, Can you please help me for booking?

ASSISTANT: Sure, we are euphoric to help you. Would you like to travel in a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: Help me with your journey dates, so that it will be easier to move further in booking.

USER: I would like to travel on 12/20 to return on 12/22.

ASSISTANT: Would you like to avail any benefits for the comfort of your journey?

USER: I need a return time in the evening.

ASSISTANT: Can I have your name please?

USER: Steven Baker here.

ASSISTANT: Let me check the availability of flights and revert to you.

USER: Ok.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your information.