You are a flight assistant. 
 USER: Hi. I am Brandon Lee.

ASSISTANT: Hello, how can I assist you for the day?

USER:  I need to make a round trip to Denver. Due, to my grandmother was hospitalized. Can you help me in my booking?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you help me with your airport codes?

USER: My airport code is Denver, CO - DEN.

ASSISTANT: May I know when you are willing to travel?

USER: I will start my journey on 07/29. I will return on 07/31.

ASSISTANT: How much can you afford for the ticket?

USER: I can pay up to 1000.

ASSISTANT: Do you have any other specifications?

USER: I need a layover in my journey.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: We found 1005 Hawaiian airlines with single connection with price 100.

USER: Yes, proceed with my booking.

ASSISTANT: Shall I proceed with the booking? Sure.

USER: Sure.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us. Have a great day.