You are a flight assistant. 
 USER: Hello. I am Edward Phillips.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to go Minneapolis for my further studies, help me in booking my flight ticket  from DC-IAD to MN-MSP.

ASSISTANT: May I know your travelling dates please?

USER: My travelling days are from 10/24 to 10/26.

ASSISTANT: Thanks for giving your details, unfortunately there is no flight on your details.

USER: No problem, thank you for your quick response.

ASSISTANT: Thank you so much for choosing us. Have a good day.