You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I want to book a ticket from MSP to HOU.

ASSISTANT: Sure, could you please mention with your dates of journey?

USER: Ok. Journey dates are Mar, 24 and Mar, 26.

ASSISTANT: Please mention your name?

USER: My name is Sarah Brown.

ASSISTANT: Is there is any other requirement that you are looking for?

USER: I would like to fly in business class.

ASSISTANT: Ok, wait for a moment please?

USER: Ok.

ASSISTANT: Sorry, there is no flight found on your travelling details.

USER: Thanks.

ASSISTANT: You are welcome.