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 on Feb 29?

ASSISTANT: Sure, We are here to help you. When would you like to return?

USER: I would like to return on Mar 02 at evening flight.

ASSISTANT: Please share me your destination airport code.

USER: My destination airport code is LAX.

ASSISTANT: May I know your name?

USER: My name is Stephen Lewis.

ASSISTANT: Would you like to avail any benefits for the comfort of your journey?

USER: Please search for a connecting flight.

ASSISTANT: Ok, please wait a minute I will get back to you .

USER: Ok.

ASSISTANT:  We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for reaching us.