You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking a flight ticket from Houston, IAH to reach PHX?

ASSISTANT: Sure, please provide your travelling dates.

USER: My travelling dates are from Oct 15 to Oct 17.

ASSISTANT: Ok, Do you prefer economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: Ok, May I know your connection limit?

USER: I need a connection in between journey.

ASSISTANT: Ok, May I know your good name please?

USER: Sure, my name is Helen Garcia.

ASSISTANT: Thank you for providing details, please wait.

USER: Sure.

ASSISTANT: Thank you for your patience, No flights were found with your given requirements.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.