You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Raymond Hernandez.

ASSISTANT: How can I serve you?

USER: I am planning to meet my client for business meeting which was going to be held at Boston MA-BOS.

ASSISTANT: Ok.

USER: Would you please help me in booking a flight ticket from MN-MSP?

ASSISTANT: Sure. May I know your travelling dates?

USER: I would like to depart on 04/02 and return on 04/04.

ASSISTANT: Do you have any preferences?

USER: I need a halt.

ASSISTANT: Thanks for your details.

USER: I can spend upto 1000.

ASSISTANT: There are no flights found on your data.

USER: Ok, no problem. Thank you for reaching us.

ASSISTANT: Thank you.