You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you?

USER: I want to book a ticket to Seattle, WA-SEA to meet my friend, can you please book me a ticket?

ASSISTANT: Sure, we are perky to help you. Where do you want to depart?

USER: Sorry, my journey starts from Seattle, WA-SEA to Washington, DC-IAD.

ASSISTANT: When are you willing to travel?

USER: My travelling dates are from 01/11 to 01/13.

ASSISTANT: There is a flight found with a fare of 200 having a flag stop in between. Shall I proceed booking with Spirit airline?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been reserved with 1018 airline.

USER: Thank you.

ASSISTANT: Thank you for consulting us.