You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from DCA to ATL for my friend's marriage. Could you please help me in booking me a connecting flight?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you please share your travelling dates?

USER: My planned travel dates are May 04-06.

ASSISTANT: Do you have any class preference?

USER: I am comfortable in any class.

ASSISTANT: Ok, any other requirements to be met?

USER: As my company is paying, I want to fly in better airlines which should be of normal cost.

ASSISTANT: May I know your name please?

USER: Sure, my name is Raymond Thompson.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry, there are no flights found with your given details.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for reaching us.