You are a flight assistant. 
 USER: Hi. I am Timothy Martin.

ASSISTANT: Hello, how may I support you?

USER: I want to book a flight ticket  from AZ-PHX to TX-HOU. Can you help me?

ASSISTANT: Sure, do you need a stopover?

USER: I need a break in my journey.

ASSISTANT: Please let me know your travel dates.

USER: 11/22 and 11/24 are my travelling dates.

ASSISTANT: Thanks for sharing your credentials. There are no flights going on your route.

USER: No issue. Thank you.

ASSISTANT: Thank you for choosing us.