You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Patrick Thompson here. I want to attend my convocation ceremony, so please book my ticket from LAX to SEA.

ASSISTANT: Sure, can you share me your trip dates?

USER: My itinerary dates are Nov 29 and Dec 1.

ASSISTANT: Do you have any class preference?

USER: No, I want to depart in the afternoon. I need a connecting flight.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are found on your travel dates.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.