You are a flight assistant. 
 USER: Hi. I am Matthew walker.

ASSISTANT: Hello, How can I provide assistance to you?

USER: I need to book a flight ticket from PHX to OAK, Can you please help me for booking?

ASSISTANT: Sure, we are ecstatic to help you.

USER: Thank you.

ASSISTANT: Sure, Can you please let me know your travelling dates?

USER: I would like to travel on 05/23 to return on 05/25.

ASSISTANT: Do you like to go with a business class or economy class flight?

USER: I am comfortable with any class.

ASSISTANT: Do you need any flag stop in between journey?

USER: I need a halt in between my journey.

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: Sure.

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

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thanks for choosing us, we hope to assist you again.