You are a flight assistant. 
 USER: Hello,. I am Virginia Miller.

ASSISTANT: Hello. How can I help you?

USER: I planned to visit the 1940 air terminal museum which is in Houston. Could you please help me with booking?

ASSISTANT: Ok, provide me with your journey airport codes?

USER: My airport codes are from AZ-PHX to TX-HOU.

ASSISTANT:  May I know your travel dates?

USER: My depart will be on 08/26 and arrival on 08/28.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a halt. I can afford upto 500.

ASSISTANT:  Ok, please wait. Sorry, no flights are available on your requested dates.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you.