You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello, how may I guide you?

USER: I am Charles Hall. I would like to meet my friend at HOU, can you book me a ticket from DEN?

ASSISTANT: Sure, we will help you. Please provide me your preferable dates to travel.

USER: I need to go on 07/13 and will be returning on 07/15.

ASSISTANT: Do you want a flag stop in between your journey?

USER: Yes, there should be a connection.

ASSISTANT: Ok, please wait for sometime.

USER: Ok.

ASSISTANT: We have Spirit airline with price 100 from flight number 1010. Shall I proceed with a connecting flight?

USER: Yes, please.

ASSISTANT: Your ticket has been reserved on the name Charles Hall.

USER: Thank you.

ASSISTANT: Thank you for selecting us.