You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Please search a flight for me and book a flight ticket on Catherine Green.

ASSISTANT: Sure, may I know your airport codes please?

USER: My travelling codes are SEA and PHL.\.

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are 01/30 and 02/01.

ASSISTANT: There is a flight with single connection, can I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Your booking is done in 1006 flight.

USER: Thank you.