You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Amy Turner.

ASSISTANT: Ok.

USER: Can you book a flight ticket from Dallas, DFW on 07/18 to attend an interview?

ASSISTANT: Sure, I am mirthful to aid you.

USER: Thank you.

ASSISTANT: Can you please forward your arrival date?

USER: I will be return on 07/20.

ASSISTANT: Ok. Where are you travelling to?

USER: I am heading to Orlando, MCO.

ASSISTANT: Thanks for sharing the details. Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately no flights are available on respective dates of your travel.

USER: Ok, Not an issue. Thank you.

ASSISTANT: Thank you for reaching us, Have a nice day.