You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you today?

USER: Can you assist me to book flight ticket from SFO to SEA?

ASSISTANT: Sure, let me know your travelling dates?

USER: My trip dates are Mar 25th and Mar 27th.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Is there any other preferences?

USER: I do not have any other specifications.

ASSISTANT: May I know your name?

USER: I am Jason Perez.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: Not an issue, thank you.

ASSISTANT: Thank you for availing us.