You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you today?

USER: I am Jonathan Lewis. I need your help in booking my airline ticket from San Francisco, CA - SFO to Phoenix, AZ - PHX. Can you help me with booking?

ASSISTANT: Sure, may I know your travel dates?

USER: 09/05 and 09/07 are my travelling dates.

ASSISTANT: Ok, do you prefer any halt?

USER: Yes, I prefer a halt.

ASSISTANT: Sorry, to say that, no flights were found on your preferred dates.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us.

USER: Thanks for availing us.