You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you book me a flight ticket on my name Catherine Thompson, travelling to Charlotte from New York?

ASSISTANT: Sure, may I know the codes of Charlotte and New York?

USER: NY - EWR and NC - CLT are the airport codes.

ASSISTANT: Ok, please help me with your travelling dates.

USER: My preferable travel dates are on 06/19 and 06/21.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I prefer a halt.

ASSISTANT: Ok, wait a minute please.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, we are sorry to inform no flights found with your details.

USER: That's ok, not an issue. I will choose another alternative for my journey. Thanks for your effort.

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