You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I would like to visit at Houston for meet my family, can you help me to book a flight ticket from PHX to IAH?

ASSISTANT: Sure, We are here to address you. Can I know your travelling dates?

USER: My travel dates are Nov 18 and Nov 20.

ASSISTANT: May I know your good name please?

USER: My name is Melissa Phillips.

ASSISTANT: Is there any specifications?

USER: No, check the above information.

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

USER: No problem, thank you for the information.

ASSISTANT: Thank you for picking us.