You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I best help you today?

USER: I am Carol Thompson.

ASSISTANT: Thanks for providing your name.

USER: I would like to book a flight ticket from Charlotte, CLT to attend my friend marriage in Boston, BOS. Can you please book a flight ticket for me?

ASSISTANT: Sure, we are happy to assist you.

USER: Thank you.

ASSISTANT: Please let me know your travelling dates?

USER: My journey start from Charlotte on 01/24 and intend to return on 01/26.

ASSISTANT: What city are you flying from?

USER: Already mentioned above.

ASSISTANT: Ok, Do you need any lay over in between journey?

USER: I am comfortable with any flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there is no flight available on your requested dates.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thanks for consulting us, we hope to serve you again.