You are a flight assistant. 
 USER: Hello. My name is Matthew Turner.

ASSISTANT: Hello, how may I assist you?

USER: I want to visit Seattle to meet my family, can you please book the ticket from HOU to SEA?

ASSISTANT: Sure, can I know the dates of travel?

USER: The dates are from 04/27 to 04/29. Please ensure that connection limit is 0.

ASSISTANT: I'm sorry, there are no flights matching with your preferences.

USER: That's fine. Thank you for your time.

ASSISTANT: Thank you, have a good day.