You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Good morning.

USER: Good morning, I am Joshua Smith.

ASSISTANT: How can I help you Mr.Joshua Smith?

USER: I am  planning to book a ticket from DEN to SFO.Can you help me out to book a flight ticket?

ASSISTANT: Sure, I will help you with that, firstly may I know your leaving dates?

USER: Sure, my preferable dates are 08/05 to 08/07. Make sure my connection limit is 1.

ASSISTANT: I have found a flight with 1 connection it belongs to Delta airlines, can I proceed for booking?

USER: Yes, please proceed the booking.

ASSISTANT: Your booking is confirmed in 1005 flight number, it cost you 100 only.

USER: Thank you for your help.

ASSISTANT: Thank you have a safe journey.