You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking a flight ticket to LGA from DCA?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates?

USER: My travel dates are from 07/29 to 07/31.

ASSISTANT: May I know your name?

USER: I am Charles Hall.

ASSISTANT: Do you have any other specifications?

USER: I would like to travel in business class.

ASSISTANT: Ok, wait for some time.

USER: I need a connecting flight. Ok.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thanks for approaching us.