You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Benjamin Moore. Could you please book a flight ticket to IAD from SEA with a connecting flight?

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are July 21 and July 23.

ASSISTANT: Is there any class preference for you?

USER: I am comfortable to travel in any class.

ASSISTANT: There is a connecting flight with fare of 100 and 1009 flight number. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your seat has been reserved with Hawaiian airline in economy class.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.