You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Betty Lewis this side, I have a medical checkup at Denver, can you please help me?

ASSISTANT: Sure, I am here to help you. Can you share your airport codes?

USER: I am looking the tickets from DTW to DEN.

ASSISTANT: Fine, let me know your preferable dates too.

USER: My preferable dates are 02/27 and 02/29.

ASSISTANT: Please wait a moment, I will get back with the availability.

USER: Ok.

ASSISTANT: On AA airline we have a flight on your preferable dates with connection 1 and price 100. Shall I proceed?

USER: Yes, you can proceed.

ASSISTANT: Fine, your ticket has been booked with flight number 1021.

USER: Thank you for your help.

ASSISTANT: Thank you for consulting us.