You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I need to book a ticket from IAH to DTW, can you please aid for me?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, am planning on 12th Jan and return 14th Jan.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need one connection between my journey.

ASSISTANT: Is there any class preference for you, please let me know?

USER: I like to travel in business class.

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

USER: No problem.

ASSISTANT: Can you please share me your name?

USER: Rachel Moore here.

ASSISTANT: Thank you for choosing us.

USER: Welcome.