You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Matthew Allen here. I would like to travel from HOU to SEA. Can you please help me to book a ticket?

ASSISTANT: Sure, we are here to help you. Let me know your travelling dates to book a flight ticket?

USER: My travelling dates will be on 04/17 to 04/19.

ASSISTANT: Do you need breaks in between your journey?

USER: I need a direct flight.

ASSISTANT: Ok, wait for a while. Thanks for waiting there are no flight found on your details.

USER: Ok, not an iussue. Thank you for your information.

ASSISTANT: Thanks for approaching us.