You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Susan Wright, I want to book a flight ticket from WA - SEA to TX - HOU to meet my colleague in Houston.

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to fly on 02/25, return on 02/27.

ASSISTANT: Do you need a stopover?

USER: Yes, I need a stopover.

ASSISTANT: There is no flight found with your requirements.

USER: Ok, thank you.

ASSISTANT: Thanks for availing us.