You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you please book a flight ticket in economy class to attend a meeting in Detroit?

ASSISTANT: Sure, could you please share your take off and landing airport codes?

USER: My airport codes are, OAK to DTW.

ASSISTANT: Please let me know your connection limit?

USER: I prefer a flight with one connection.

ASSISTANT: Do you have any other preferences?

USER: No other preferences.

ASSISTANT: Could I have your journey dates, please?

USER: My journey dates are, depart on May 20th, and arrival on May 22nd.

ASSISTANT: May I know your good name?

USER: My name is Betty Evans.

ASSISTANT: We found a connecting flight 1016 from Southwest airline has fare 100. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank  you for your help.

ASSISTANT: Thank you for opting us.