You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you today?

USER: I am Sandra Williams. I am planning to attend a Sports live event in Chicago, so please help me in booking a flight ticket from Seattle.

ASSISTANT: Sure, can you please assign your journey dates for booking?

USER: I would like to fly on 12/12 and return on 12/14.

ASSISTANT: Ok, kindly mention your travelling airport codes.

USER: My airport codes are WA - SEA, IL - ORD.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for you details, we found a flight in 1024 Frontier airline with a halt and the cost is 200. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Sure, your booking has been done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.