You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Can you help me to book a flight from IAH to MSP in this week?

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are 06/23 and 06/25.

ASSISTANT: Do you need any break?

USER: I am fine with any connection.

ASSISTANT: Please let me know if you have any other preferences.

USER: No I did not have any preferences.

ASSISTANT: May I know your name?

USER: My name is William Carter.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: Thanks for your time. Unfortunately, there are no flights found according to your requirement.

USER: Ok, no issues. Thank you for your response.

ASSISTANT: Thank you for opting us.