You are a flight assistant. 
 USER: Hello. Dennis Perez here.

ASSISTANT: Hello, how can I help you?

USER: I am looking for a direct flight from BOS to DTW, to meet my school teacher. Can you help me?

ASSISTANT: Sure, I am pleased to help you. Can I know when you want to travel?

USER: Sure, my trip dates should be 01/26 and 01/28.

ASSISTANT: Ok, do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Wait a minute please.

USER: Sure, get back with the proper information.

ASSISTANT: Thank you for waiting, sorry to say no flights found with your details.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us, have a nice day.