You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Kathleen Garcia, I want to book a flight from MCO to DTW to attend a meeting. Can you book a flight for me?

ASSISTANT: Sure, I am here to help you. May I know your travel dates?

USER: I will fly on May 16 and return on May 18.

ASSISTANT: Ok, do you have any class preference?

USER: No.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry to inform you that, there is no flight available in this route on the dates you have given.

USER: Ok, thank you for the information.

ASSISTANT: You are welcome. Thank you for reaching us.