You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Robert Thomas.

ASSISTANT: What type of guidance do you require from our agency?

USER: I am looking for a flight from BOS to MCO, can you help me?

ASSISTANT: Sure, I will help you. Can I know your preferable travel dates please?

USER: My travelling dates are 23 and 25 of Apr.

ASSISTANT: Ok, do you need a direct flight or a connecting flight?

USER: I need a connecting flight.

ASSISTANT: Ok, which class do you prefer either economy class or a business class?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other preference related to timings?

USER: I prefer to return in the evening.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: I am really sorry to inform you that, there are no flights found which is returning in the evening time.

USER: Oh! not an issue, thank you.

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