You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I got a job in Chicago, so I want to travel to ORD. Can you help me in booking a ticket?

ASSISTANT: Sure, help me with the travelling dates.

USER: My travel dates are 03/25 and 03/27.

ASSISTANT: May I know your source airport code?

USER: My source code is SEA.

ASSISTANT: Give me a minute. There is a flight with number 1018 in airline Spirit.

USER: Yes, please.

ASSISTANT: May I know your name before booking?

USER: Myself Amanda Evans.

ASSISTANT: Your ticket is booked, happy journey.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.