You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning a business from IAD to BOS, can you help?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to travel on 03/08 and return on 03/10.

ASSISTANT: Ok, please wait for a moment.

USER: Ok. I want to book a ticket in the name of Christine Moore.

ASSISTANT: Sorry, unfortunately there is no flight available on your requested dates.

USER: No problem.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.