You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Eric Parker here.

ASSISTANT: How may I help you out?

USER: I want to book a flight reservation on the route from MSP to IAD to meet an old friend. Can you help me?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates will be from 05/05 to 05/07.

ASSISTANT: Do you have any connection limit?

USER: Please check for 1 connection flight.

ASSISTANT: Sorry,there are no flights found in our database.

USER: Oh! That's very sad to hear from your side. Anyways, thank you for helping me out.

ASSISTANT: Thank you for choosing us.

USER: You are most welcome.