You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Frank Adams here. I would like to visit MSP, can you help me to book a flight ticket from BOS?

ASSISTANT: Sure, I am here to help you. Can you please tell me your travel dates?

USER: My travelling dates are 14 and 16 of July.

ASSISTANT: Ok, please tell me your airlines preference.

USER: I am comfortable with any class.

ASSISTANT: Ok, there is a flight found with the connection limit 1 and the ticket fare is 100 in the Southwest airlines. Shall I reserve the ticket with this flight?

USER: I need a direct flight.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Sorry to inform you, there is no direct flight found on the dates you have given.

USER: It's ok, thank you for giving information.

ASSISTANT: You are welcome. Thank you for reaching us.