You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Richard King.

ASSISTANT: How can I guide you at this moment?

USER: I want to book a ticket from SEA to ORD, can you help me?

ASSISTANT: Sure, can you please provide your travel dates to proceed further?

USER: My travel dates are 01/07 and 01/09.

ASSISTANT: Give me a moment please.

USER: Sure.

ASSISTANT: Richard King, there is no flight service available on this route on your provided dates.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for contacting us.