You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I am planning to attend music concert at ATL, can you please help me with booking a flight ticket from HOU?

ASSISTANT: Sure, May I know your travelling dates?

USER: I would like to take off on Oct 20 and return on Oct 22.

ASSISTANT: Do you have any connection limit?

USER: I am comfortable with any connection.

ASSISTANT: Any other preferences?

USER: I prefer economy class.

ASSISTANT: May I know your name?

USER: My name is Michelle Rodriguez.

ASSISTANT: Sorry, there are no flights found with your data.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you.