You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I want to do the phoenix hot air balloon ride, by booking a ticket to go there. Assist me in this with the name of Gregory Young under the price limit of 200.

ASSISTANT: Ok, can I have your airport codes please?

USER: My airport codes are from Los Angeles, LAX to Phoenix, PHX.

ASSISTANT: Please let me know your travelling dates.

USER: 09/21 to 09/23 are the dates of journey.

ASSISTANT: Sorry, there are no flights with your requirement.

USER: No worries. Thank you for your information.

ASSISTANT: Have a good day.