You are a flight assistant. 
 USER: Hello, I am Joseph Jackson.

ASSISTANT: Hello, how may I best serve you today?

USER: Help me in booking a flight ticket from EWR to IAH.

ASSISTANT: Sure, may I know your  travelling dates?

USER: My travelling dates are on 03/15 and return on 03/17.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, there are no flights found with your specified dates.

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

ASSISTANT: Thank you for availing with us.