You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please make a reservation with the name of Elizabeth Campbell?

ASSISTANT: Sure, I can do that for you. Can you please help me with your travel dates?

USER: My journey dates are on Dec 15th and 17th.

ASSISTANT: Thank you. May I know your source and destination airport codes?

USER: My journey airport codes are, ORD to DTW.

ASSISTANT: Sure, is there any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Ok, please wait for a while.

USER: Sure, please check the flights availability with connecting flight.

ASSISTANT: Flight-1012 is available in AA Airlines and the ticket fare is 100 only. Flight departs at 8:00 hours and arrives at 4:00 hours. Is that ok for you?

USER: Ok, proceed.

ASSISTANT: Your ticket is confirmed successfully in economy class.

USER: Thank you for your help.

ASSISTANT: You are welcome and thank you for choosing us.