You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gregory Lewis.

ASSISTANT: Gregory Lewis, how may I aid you?

USER: Can you help me in book a flight ticket from MSP to IAH?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My journey dates are from Feb 10 to Feb 12.

ASSISTANT: Do you have any specifications?

USER: I need to travel in business class with a connecting flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flight is available as per your requirements.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for reaching us.