You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How may I help you today?

USER: I am Sandra Taylor. I am planning to celebrate my daughter birthday with her grandparents at Charlotte, NC-CLT on 12/10. Can you please book a flight ticket from Houston, TX-IAH and return on 12/12?

ASSISTANT: Ok, please wait a minute, will check and tell you.

USER: Ok.

ASSISTANT: Thank you, here are the details of flight, airline AA with a single connecting flight of price 100 and flight number is 1006. May I proceed to book?

USER: Yes, you can proceed with booking.

ASSISTANT: Ok, Thank you for choosing us. Your ticket is reserved.

USER: Than you for helping me in booking a ticket.

ASSISTANT: Ok. You are welcome, Have a nice day.