You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am  Eric Adams.

ASSISTANT: May I know your concern to assist you?

USER: Can you please book a flight ticket from SEA to HOU?

ASSISTANT: Sure, may I know the travel dates too?

USER: I will start on Nov 1 and need to return on Nov 3.

ASSISTANT: Please wait a moment I will check.

USER: Sure.

ASSISTANT: There are no flights available as per the intents provided to me.

USER: No problem, thank you for your kind service.

ASSISTANT: Thank you for choosing our agency.

USER: Welcome.