You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Please reserve me a flight ticket from IAH to ORD to attend a business meeting.

ASSISTANT: Sure, when are you willing to travel?

USER: My travel dates are from Jan 4th to Jan 6th.

ASSISTANT: May I know your name please?

USER: I am Charles Roberts.

ASSISTANT: Do you have any preferences?

USER: Yes, I prefer not to travel in low-cost airline. I want a single stopover in between my journey.

ASSISTANT: We found a flight in an airline Delta with 1005 number having a single connection price of 100. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.