You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: I am going to a round trip to Houston to provide a seminar to our another branch, can you please book me a ticket with single halt on the name Donna Davis?

ASSISTANT: Sure. Please mention your journey airport codes.

USER: Sure, it's HOU.

ASSISTANT: Let me know your scheduled dates of journey?

USER: I am flying out on 10/17 and return back on 10/19.

ASSISTANT: Ok, please wait a while. We found a Delta airline available according to your requirements with flight number 1001 and price is 100.

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.