You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid at this moment?

USER: I am Thomas Green. Can you help me in booking from IAH to HOU?

ASSISTANT: Please, provide your dates of journey.

USER: My travelling dates are 01/31 to 02/02.

ASSISTANT: Sorry Green, there is no flight to your destination.

USER: No issue, thank you for checking.

ASSISTANT: Most welcome.