You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Anthony Anderson. Can you book a flight ticket in my preferable travel dates Dec, 31 and Jan, 2?

ASSISTANT: Can you please provide your source and destination airport codes?

USER: My respective source and destination airport codes are SEA and ORD.

ASSISTANT: Do you have any airline preferences?

USER: No.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I need a connecting flight and my depart time should be at morning.

ASSISTANT: There is a flight with ticket fare 300 in Frontier airlines with a stopover in economy class. Is it ok for you?

USER: Please go ahead.

ASSISTANT: Your booking is confirmed with flight number 1009. Departure time is 6:00 AM and return time is 7:00 AM.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us, have a nice day.