You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I am John Rodriguez. I have to book a flight ticket  that I am unable to do, could you please help me in booking flight ticket on dates 11/05 and 11/07?

ASSISTANT: Ok, can I have your journey dates? Ok, please mention your airport codes too.

USER: My airport codes are BOS and ORD.

ASSISTANT: May I know your class preferences?

USER: I am comfortable with any class.

ASSISTANT: There is a connecting flight-1001 with price 200, is it fine for you?

USER: Yes.

ASSISTANT: Ok, booking is done on Delta airlines.

USER: Thank you.

ASSISTANT: Thanks for choosing us.