You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Rachel Nelson want to visit LGA, can you book a ticket from SEA?

ASSISTANT: Sure, I'll help you in that. May I know your travel dates please?

USER: Sure, my travelling dates will be 05/19 and 05/21.

ASSISTANT: Spirit airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket has been booked with flight-1008, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you so much for choosing us.