You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Rebecca Evans. Can you please help me to reserve a flight ticket from Houston to Chicago? Because I have to attend the final examination in Chicago.

ASSISTANT: Sure, I will help you. Could you please help me with your preferred airport codes?

USER: Thank you. My preferred airport codes are IAH and ORD.

ASSISTANT: Ok, may I know your preferred travel dates?

USER: The planned travel dates are 05/25 and 05/27.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time. I will wait for your reply but make sure that the price limit is 5000 or less.

ASSISTANT: There is a flight available with Southwest airlines and the ticket costs you 100 only. Is that ok for you?

USER: Yes, I am ok with this flight to travel. Please proceed with ticket booking.

ASSISTANT: Evans, your ticket is confirmed with the flight-1006.

USER: Thank you so much for your help in confirming the flight ticket.

ASSISTANT: You are welcome and thank you very much for your help.