You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am a singer, I have to participate in a contest at Seattle. So please book my ticket from Chicago.

ASSISTANT: Sure, can you share your journey dates?

USER: My itinerary dates are 05/27 and 05/29.

ASSISTANT: May I know your airport codes for booking?

USER: My genesis and terminus airport codes are ORD and SEA.

ASSISTANT: Do you have any specifications?

USER: I am looking for a connecting flight.

ASSISTANT: There is a connecting flight with 1010 in airline UA, the fare is 100. Can I book it?

USER: Please book my ticket.

ASSISTANT: May I know your name for booking?

USER: Elizabeth Anderson here.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.