You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER: I am planning to attend music concert at IAH, can you please help me with booking a flight ticket from JFK?

ASSISTANT: Sure, I am here to help you. When you have planned to travel?

USER: Sure, I would like to depart on Nov 19 and return on Nov 21.

ASSISTANT: Ok, please share your airline preference.

USER: I prefer normal cost airline.

ASSISTANT: In which class, you prefer to go?

USER: I am comfortable with any class.

ASSISTANT: Is there any other specifications to meet?

USER: I would like to depart and return during afternoon time.

ASSISTANT: Can I have your name please?

USER: Sure, my name is Paul Collins.

ASSISTANT: Thanks for your details, please wait.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

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

ASSISTANT: Thank you for opting us.