You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Christine Taylor want to visit HOU, can you book a ticket from PHX?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates to book a flight ticket?

USER: Sure, my travelling dates will be 09/23 and 09/25.

ASSISTANT: Ok, wait for some time.

USER: Ok.

ASSISTANT: Thanks for waiting there are no flights found on your details.\.

USER: That's ok, thank you.

ASSISTANT: Thanks for approaching us.