You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please help me to book a flight ticket from SEA to OAK.

ASSISTANT: May I know your good name?

USER: Mary Martinez.

ASSISTANT: May I know your itinerary dates please?

USER: My trip dates are from July, 19 to July, 21.

ASSISTANT:  Ok, which class do you prefer to travel?

USER: No.

ASSISTANT: Any other specifications to be met?

USER: I need a single connecting flight.

ASSISTANT: There is a direct flight-1011 in economy class, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, booking is done on Hawaiian airlines.

USER: Thank you.

ASSISTANT: Thanks for choosing us.