You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Sandra Wright. Please book a flight ticket on dates 12/24 and 12/26.

ASSISTANT: Sure, may I know your source and destination codes?

USER: Yes, my airport codes are TX-HOU and TX-DFW.

ASSISTANT: Do you need a halt in between my journey?

USER: Yes, I need.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: We found an airline: Delta, flight number: 1021 and price is 100.

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.