You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I am Donna Mitchell. Me and my friends planned for a round trip at Seattle, WA - SEA. So, can you please book a flight ticket?

ASSISTANT: Sure, please share your dates to travel.

USER: 07/28 and 07/30 are my travelling dates.

ASSISTANT: Ok, do you have any restriction on price?

USER: Ticket price must be 200.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Thanks for being on hold, we found a flight with 1006 number and the fare is 100 in Spirit airlines.

USER: Please proceed for booking.

ASSISTANT: Ok, your booking is done.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for choosing us.