You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I want to reserve my ticket from SEA to SEA for a city roundup trip at Seattle, can you please help me/.

ASSISTANT: Sure, could you please provide your willing dates to travel?

USER: Sure, my preferable dates of journey is from 06/13 to 06/15.

ASSISTANT: Ok, please hold on for a moment.

USER: Ok, I will wait.

ASSISTANT: Ok, there is a flight 1000 in UA airline matching your details with price 100. Shall I proceed?

USER: Ok, you can book it with the name as Alexander Perez.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help in booking my ticket.

ASSISTANT: You are welcome, have a safe journey.