You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Harris.

ASSISTANT: How can I assist you?

USER: I am planning to visit New York, can you please book me a ticket from PHX to JFK?

ASSISTANT: Sure Gary, can I know the travel dates please?

USER: My planned dates of journey are from 07/26 to 07/28.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your own time.

ASSISTANT: Sorry, there are no flights on your dates.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for approaching us.