You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help that can I aid for you?

USER: I am Michelle Gonzalez. I am looking for a flight ticket from SFO to CLT. Can you check that for me?

ASSISTANT: Yes, please provide your dates.

USER: The travelling dates are 06/19 and 06/21.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, I am unable to find a flight on the dates which you have provided on the trip which you have given.

USER: It's ok, I will contact to some other travel agency. Thank you for checking.

ASSISTANT: It's my pleasure, have a nice day.