You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Mary Allen. Can you book a flight ticket from MSP to BOS?

ASSISTANT: Sure, Please provide me your planned travel dates to proceed.

USER: I will start on July, 8 and need to return on July, 10.

ASSISTANT: Do you prefer either economy or business class?

USER: I am comfortable with any class.

ASSISTANT: Sorry, there were no flights running in your preferred dates.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.