You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am William Martin here.

ASSISTANT: How may I help you?

USER: I want to reserve my ticket from SEA to DFW, can you please help me to book a ticket?

ASSISTANT: May I know your trip dates?

USER: Sure, my dates of travel is from 09/29 to 10/01.

ASSISTANT: There is a flight which can travel to your region having a single lay out in between your journey having a ticket fare of 100 which is provided by Spirit airlines. Would you like to book this flight for your journey?

USER: Ok, you can book this ticket.

ASSISTANT: Your ticket is booked.

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

ASSISTANT: Most welcome.