You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what kind of assistance are you looking for?

USER: I want to fly to Minneapolis to attend a client meeting on June 26th. Could you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: May I know when would you like to return from Minneapolis?

USER: I want to return form MN on June 28th.

ASSISTANT: In which class would you prefer to travel?

USER: I would like to fly with the business class for this time.

ASSISTANT: Can you please let me know your airport codes?

USER: Sure, I like to start my journey from IAH and my destination airport code is MSP.

ASSISTANT: To proceed further, may I know your name?

USER: I am Kimberly Clark.

ASSISTANT: Please wait, I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found with your given requirements.

USER: That's ok, I'll choose any alternative to reach my destination. Thank you for your information.

ASSISTANT: Thank you for contacting us.