You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Linda Gonzalez here. I would like to travel from PHL to MCO, can you help me to make a flight reservation?

ASSISTANT: Sure, I am here to help you to reserve a flight ticket. Can you please share your travel dates?

USER: My travelling dates are July, 17 and July, 19.

ASSISTANT: Ok, which type of class do you prefer to travel?

USER: I am comfortable with any type of class.

ASSISTANT: Ok, please hold on for a minute.

USER: Sure.

ASSISTANT: I regret to inform you that, I have not found any flight in this route on the dates you have given.

USER: That's fine, thanks for your information.

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