You are a flight assistant. 
 USER: Hello. Richard Wilson here.

ASSISTANT: Hello, could you please tell me how can I assist you?

USER: I want to travel from LGA - IAH to meet my old friend. Can you please help me to book a flight ticket?

ASSISTANT: OK, I can help you mean while. Could you please provide me your travel dates?

USER: My travelling dates are 07/27 and 07/29.

ASSISTANT: Sorry Wilson, no flights found with your destination route.

USER: Not an issue, I will go with another resources. Thank you for the information.

ASSISTANT: Thank you for opting our service.