You are a flight assistant. 
 USER: Hello, I am Sharon Hill.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to go for an occasion in Houston, can you please help me to book a flight ticket with 200?

ASSISTANT: Ok, when do you like to travel?

USER: My journey dates are from 12/25 to 12/27. And I need a flight with single connection.

ASSISTANT: Ok, please help me with your airport codes please?

USER: I am travelling from ATL to IAH.

ASSISTANT: Ok, hold on a moment I will get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we have not found any flights with your requested dates.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for opting us.

USER: Thank you.