You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you at this minute?

USER: I want to travel from IAD to MSP. Can you help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you with that. Can I know your itinerary dates?

USER: I want to travel in the flight on Sept 29 and Oct 01.

ASSISTANT: Do you have any other requirements?

USER: I want to have a connection of 1.

ASSISTANT: Ok, wait for a minute.

USER: Ok, take your time.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: May I know your name?

USER: I am Amanda Wright.

ASSISTANT: Thank you for reaching us.