You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please hold me a flight ticket from LGA to IAD?

ASSISTANT: Sure, may I know your good name please?

USER: Catherine Green here.

ASSISTANT: May I know your planned travelling dates please?

USER: My trip dates are 03/16 - 03/18.

ASSISTANT: May I know your class preference please?

USER: I am ok to travel in any class.

ASSISTANT: May I know your connection limit please?

USER: I need a single connection. My return time should be in the morning please make sure.

ASSISTANT: Sorry Green, there is no flight found as per your required travelling time.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.