You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kenneth Allen.

ASSISTANT: How can I assist you today?

USER: I want to go MSP for giving a seminar to students there, can you please book a flight ticket from BOS?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Thank you, I want to take off on 03/27 and book my return ticket also on 03/29.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no flights found under your details.

USER: Oh! It's ok no problem, I will go with another airline service. Thank you for your service.

ASSISTANT: Welcome, have a great day.