You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I would like to celebrate my birthday in Minneapolis, can you please book the flight ticket from HOU to MSP?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to depart on 06/27 and return on 06/29.

ASSISTANT: Ok, may I know your name please?

USER: My name is Deborah Scott.

ASSISTANT: Sorry, there are no planes on your requested dates.

USER: Very sad to hear that, anyway thank you for the information.

ASSISTANT: Thank you for approaching us.