You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I have to attend a business meeting in New York, can you please book a flight ticket for me?

ASSISTANT: I can help you with that.

USER: Thanks.

ASSISTANT: May I know your name please?

USER: Sure, my name is David Moore.

ASSISTANT: David, can you provide the travel dates please?

USER: My departure date is 07/28 and please book my return ticket also on 07/30.

ASSISTANT: Please let me know your take off and landing airport codes?

USER: I want to fly from SFO airport and destination airport is JFK.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: There is a flight for you in Frontier airline with price 100, can I book it?

USER: Yes, I am comfortable with this airline, please confirm this flight ticket.

ASSISTANT: Your ticket has been booked with flight number 1027.

USER: Thank you for assisting me.

ASSISTANT: Thank you for approaching us.