You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jack Parker.

ASSISTANT: How may I support you today?

USER: Please reserve me a flight ticket to Boston, BOS to attend a seminar.

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Help me with your source point?

USER: Minneapolis, MSP is my source code.

ASSISTANT: Mention your travelling dates?

USER: My planned journey dates are 03/21 and 03/23.

ASSISTANT: Thanks for your details, sorry there is no flight found on your requested dates.

USER: It's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.