You are a flight assistant. 
 USER: Hello, I am Jennifer Edwards.

ASSISTANT: Hello. How can I help you today?

USER: I would like to visit Discovery place in Charlotte, so could you please book a ticket for me?

ASSISTANT: Sure, I will help you to book a flight. Can you share me your travelling dates?

USER: I would like to go on 01/18 and return back on 01/20.

ASSISTANT: Ok, may I know your airport codes?

USER: My airport codes are IAH and CLT.

ASSISTANT: Give me a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry, there is no flight is available on your requested dates.

USER: That's ok, thank you.

ASSISTANT: Welcome. Thank you for choosing us.

USER: Welcome.