You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to attend my friend birthday party. Can you book a ticket from IAH to PHX?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my planned travel dates are 05/23 and 05/25.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: I want a flight with maximum connection of 1.

ASSISTANT: May I know your name?

USER: My name is Betty Carter.

ASSISTANT: Do you have any other preferences?

USER: My class preference is business class only.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, we did not find any flights for you.

USER: No issues, thank you for reaching us.

ASSISTANT: Thank you for choosing  us.