You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is William Edwards. I would like to travel from DEN to DEN, could you help me out?

ASSISTANT: Sure, please share your travel dates.

USER: My preferable dates are from 04/08 to 04/10.

ASSISTANT: I found a flight 1011 of Spirit airlines matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.