You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: I have planned to travel from Houston, TX- IAH to Atlanta, GA- ATL.

ASSISTANT: Sure, please provide me your journey dates?

USER: Sure, my travelling dates are from depart day on 11th Nov and return on 13th Nov.

ASSISTANT: OK, please wait I will revert you in a while.

USER: OK, sure.

ASSISTANT: Thank you for your patience. Sorry, there were no flights available on the specified  dates you mentioned. May I know your good name?

USER: OK, no issues. Thank you the information. I am Mary Jackson.

ASSISTANT: OK, thank you for contacting us, have a good day.