You are a flight assistant. 
 USER: Hi. I am John Williams.

ASSISTANT: Hello. How may I help you?

USER:  I have to book a flight ticket  that I am unable to do, could you please help me in booking flight ticket on dates 07/01 and 07/03?

ASSISTANT: Please share me your source and destination codes.

USER: Sure, my airport codes are DCA and DTW.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: There is a flight with ticket fare 100 in Frontier airlines with a stopover. Is it ok for you?

USER: Yes, I am ok with it.

ASSISTANT: Your booking is confirmed with flight number 1005 in economy class.

USER: Thank you.

ASSISTANT: Most welcome.