You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to visit Seattle to meet my grand parents. Please book a ticket from IAD to SEA.

ASSISTANT: Ok, can you please tell me your planned dates for the following journey?

USER: My journey dates are 02/13 and 02/15.

ASSISTANT: Please excuse me for a moment till I check with availability.

USER: Sure, take your time.

ASSISTANT: May I know your good name please?

USER: My name is Patricia Jackson.

ASSISTANT: There is a flight available for you with Spirit airlines with 1 connection at the price of 200.

USER: Ok, please book my ticket.

ASSISTANT: Patricia Jackson, your booking is done.

USER: Thank you for your help.

ASSISTANT: Have a great journey ahead.