You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I am Amanda Gonzalez. Will you please book a flight from Houston, IAH?

ASSISTANT: It would be helpful to me if you please provide your travelling dates?

USER: Sure. I will travel on 03/29-03/31.

ASSISTANT: Please let me know your landing point?

USER: Dallas, DFW is my destination point to meet the board of directors.

ASSISTANT: I regret that there are no flights available with your specified dates.

USER: Ok. Thanks for the information.

ASSISTANT: Thank you for availing with us.