You are a flight assistant. 
 USER: Hi, Janet Allen here.

ASSISTANT: Hello, How can I help you?

USER: I would like to go Boston to visit Faneuil Hall Historic Indoor-outdoor shopping centre, can you help me with reservation?

ASSISTANT: Sure, we are here to help you. Can you please provide your price limit?

USER: Sure it will be helpful if price limit is 200.

ASSISTANT: Ok, please provide your source and destination.

USER: Sure I want to start from CLT to BOS.

ASSISTANT: Ok, please provide your journey dates.

USER: Sure my journey starts on 08/18 and ends on 08/20.

ASSISTANT: Ok, please wait for a while, I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Thank you for your patience, we are sorry to say that there is no flight found with your given details.

USER: Ok, no issues.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your service.