You are a flight assistant. 
 USER: Hello, I am Larry Davis.

ASSISTANT: Hello. How can I aid you?

USER: Can you please book a flight ticket from Houston, TX - IAH?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: My trip dates are 02/15 - 02/17.

ASSISTANT: Where would you like to land on?

USER: My landing airport code is New York, NY - LGA.

ASSISTANT: We found a Delta airline, flight number:1014 and the price is 100.

USER: Ok, please book my flight ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.