You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Melissa Lee from Charlotte. Can you please book a flight ticket from CLT to BOS?

ASSISTANT: Sure, may I know your travelling dates?

USER: Thank you for your positive response, I want to fly on 06/05 and please confirm my return ticket also on 06/07.

ASSISTANT: Please wait for some time.

USER: Ok.

ASSISTANT: Sorry to say this, no flights are available under your name in our records.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.