You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Charles Roberts from New York. I have to go to Houston next week. Can you please book a flight ticket for me?

ASSISTANT: Sure, can you please provide me your airport codes?

USER: Thank you for your positive response, I want to fly from JFK and destination airport is HOU.

ASSISTANT: Sure, can you please provide your travelling dates?

USER: I want to take off on 03/19 and please confirm my return ticket also on 03/21.

ASSISTANT: Please hold on for a while.

USER: Ok.

ASSISTANT: Flight 1004 in Spirit airlines is available for you with 1 connection and fare is 100. Shall I proceed?

USER: That's great, please confirm this flight ticket for me.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.