You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My travel dates are 12/07 and 12/09.

ASSISTANT: Can I have your name please?

USER: I am Patricia Jackson.

ASSISTANT: Do you have any connection preference?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I prefer to travel in business class.

ASSISTANT: Patricia Jackson, no flights has been found on your planned travel dates.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for choosing us.