You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Myself Anna Young, I would like to reserve a plane ticket with 1 connection.

ASSISTANT: Sure, may I know your planned dates to travel?

USER: Sure, I am willing to travel on these dates that is from 10/21 to 10/23.

ASSISTANT: Can you please share your source and destination airport codes?

USER: Ok, my source and destination codes are from PHL to HOU.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for contacting us.