You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book flight ticket from IAH to PHX?

ASSISTANT: sure, I am here to help you in booking. Can you please share your travel dates?

USER: My trip dates are Oct 29 and Oct 31.

ASSISTANT: Can you please tell me your name?

USER: Stephanie Miller here.

ASSISTANT: Do you have any specification?

USER: I need a connecting flight.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.