You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I render you at this moment?

USER: Can you avail me to book a flight from DEN to CLT?

ASSISTANT: Sure, do you need a lay by in between the journey?

USER: Yes, I need it.

ASSISTANT: Ok, on which dates would you like to travel?

USER: My travel dates are Jan 18 and 20.

ASSISTANT: Ok, may I know your good name please?

USER: Christopher Taylor here.

ASSISTANT: Ok, do you have any other preferences?

USER: No.

ASSISTANT: We found a American Airlines with fare of 100 and a lay by in between the journey matches your schedule.

USER: Please reserve my seat.

ASSISTANT: Your ticket has  been confirmed with flight number 1025.

USER: Thanks for your kind assistance.

ASSISTANT: Thank you for reaching us.