You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking a flight ticket from OAK to SEA?

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

USER: Sure, my travel dates are from Mar 18 to Mar 20.

ASSISTANT: Can you please share your name?

USER: Myself Gary Clark.

ASSISTANT: Is there any connection limit?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: May I know you class preference please?

USER: I would prefer economy class for my trip.

ASSISTANT: Do you have any other specifications?

USER: I would like to return in the morning flight.

ASSISTANT: Gary Clark, there are no flights available in your route.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us.