You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sharon Martinez.

ASSISTANT: How may I help you?

USER: I am planning to visit Downtown Aquarium at Houston, could you please help me with booking a flight ticket from DFW to IAH?

ASSISTANT: May I know your travel dates?

USER: I would like to take off on 03/02 and return on 03/04.

ASSISTANT: Sorry, there is no flight found with your details.

USER: That's ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: Most welcome.