You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Stephen King.

ASSISTANT: How may I help you?

USER: On 11/27 I want to start my journey to meet my fiance on her birthday. Will you help me in booking me a flight ticket from Chicago, ORD?

ASSISTANT: Please provide your return date?

USER: I will return on 11/29.

ASSISTANT: Please mention destination airport code?

USER: My destination airport is San Francisco, SFO.

ASSISTANT: Ticket can be booked with connections 1, airline Spirit, flight number 1019 for price 100.

USER: Proceed with my booking.

ASSISTANT: Ticket is booked.

USER: Thank you for kind service.

ASSISTANT: Thanks.