You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Mary Nelson.

ASSISTANT: What can I do for you today?

USER: I want to book a  normal-cost airline to attend an client meeting at TX. Can you help me?

ASSISTANT: Sure, please tell me your class preference.

USER: Thank you. I am comfortable with any class.

ASSISTANT: Ok, do you need any break in between the journey?

USER: I need a break.

ASSISTANT: Ok, can you please provide your travelling dates?

USER: July 20th and 22nd are my travelling dates.

ASSISTANT: Ok, help me with your airport codes.

USER: ATL and IAH are my airport codes.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: We found a direct flight with fare of 200 and economy class matches your schedule.

USER: You can reserve it.

ASSISTANT: Your ticket has been confirmed with flight number 1001 and American Airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.