You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am George Martinez. Can you help me in booking from SEA to ORD, as there is a basket ball match to participate?

ASSISTANT: Sure, please provide me your travelling dates to search a flight.

USER: My trip dates are May 12 to May 14.

ASSISTANT: Do you have any requirements for the journey you planned?

USER: I need a flight which departs at afternoon.

ASSISTANT: Sorry, I could not find any flight with your travelling dates.

USER: No issue, thank you.

ASSISTANT: My pleasure.