You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can i help you today?

USER: I want to reserve flight ticket from SEA to ORD, can you please help me out?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates to book a flight ticket?

USER: Sure, my planned travelling dates are May, 16 and 18 respectively.

ASSISTANT: May I know your name?

USER: Eric Thompson here.

ASSISTANT: Do you have any other specifications?

USER: I would prefer direct flight in my journey.

ASSISTANT: Ok, wait for some time.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: It's ok, thank you for your information.

ASSISTANT: Thanks for approaching us.