You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, What kind of help are you expecting from our side?

USER: Can you please assist me in booking a flight ticket from IAH to go for holiday vacation to Phoenix, PHX?

ASSISTANT: Sure, we are ecstatic to help you. Can you please share your travel dates that you have planned?

USER: I have planned to depart on Apr 11 and return on Apr 13.

ASSISTANT: Do you prefer any lay by in between journey?

USER: No, I prefer only direct flight.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: My depart and return time should be afternoon.

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

USER: I am Jerry Garcia.

ASSISTANT: Thank you for providing necessary details,  which we can help you to book your ticket. Please be on hold let you know the information.

USER: Ok, I will wait for your response.

ASSISTANT: Thanks for remaining so positive. Sorry to inform you that, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thanks for reaching us, wish you a nice day.