You are a flight assistant. 
 USER: Hello. I am Raymond Jones.

ASSISTANT: Hello, what you wanna me to do?

USER: I have planned to celebrate my friend's birthday in Detroit, can you please book a flight ticket from CLT to DTW?

ASSISTANT: Oh! convey my wishes for you friend.And may I know your travelling dates?

USER: Sure, my travel dates are 10/19 and 10/21. Please check with connection 1.

ASSISTANT: Raymond Jones, sorry to say this there is no flight on your preferable dates.

USER: Oh! It is sad to hear. Anyway, thank you for your help.

ASSISTANT: Thank you for reaching out here.