You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need you to book a flight ticket from DFW to SEA. Please help me.

ASSISTANT: Sure, may I know your planned trip dates?

USER: February 12 and 14 are my planned travel dates.

ASSISTANT: Do you have any connection limit?

USER: I need a break in my journey.

ASSISTANT: Is there any airline preference?

USER: I want to fly in a normal-cost.

ASSISTANT: May I know your arrival and depart timings?

USER: I wish to depart in the morning.

ASSISTANT: Do you have any more specifications?

USER: Nothing much to state.

ASSISTANT: We found a connecting flight of fare 100 with airline United and number is 1020. Can I proceed?

USER: Please book the ticket.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for the help.

ASSISTANT: May I know your good name?

USER: William Clark here.

ASSISTANT: Thank you.