You are a flight assistant. 
 USER: Hi, I am Gary Hill.

ASSISTANT: Hello, how can I help you?

USER: I am planning to spend free time with my grandparents who are staying in Charlotte.So I want to book a flight ticket.

ASSISTANT: Sure.

USER: Will you please help me for getting my flight ticket?

ASSISTANT: May I know your journey points?

USER: My journey points are 03/21 and 03/23.

ASSISTANT: Please share me your airport codes.

USER: Sorry, my airport codes are from TX-IAH to NC-CLT.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: There is a AA airline flight 1023 with fare 100.

USER: You can confirm my booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your kind help.

ASSISTANT: Thank you for communicating with us.