You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: My name is Margaret Campbell.

ASSISTANT: Yes, Campbell.

USER: I have a plan to start up new business in Fort Worth, can you help for booking?

ASSISTANT: Sure, I am mirthful to help you. Can you please provide your travelling details?

USER: Sure, my travelling dates are 12/16 and 12/18.

ASSISTANT: May I know your nearest airport codes?

USER: My nearest airport codes are HOU and DFW.

ASSISTANT: Sorry for inconvenience, there is no flight found with your requirement.

USER: That's not a problem, there are many ways to travel. Anyway, thank you for your information.

ASSISTANT: Thank you for choosing us.