You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Amanda Perez here. Can you please hold me a flight ticket from LGA to DFW?

ASSISTANT: Sure, may I know your class preference?

USER: I need a business class to travel.

ASSISTANT: Let me know your planned travel dates please.

USER: My trip dates are 03/11 - 03/13.

ASSISTANT: Do you have any connection limit?

USER: I prefer a single connection.

ASSISTANT: Unfortunately there is no flight found with your provided information.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for opting us.