You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I planned to meet my cousin in PHX, can you please help me to book a flight ticket from HOU?

ASSISTANT: Sure, may I know your dates of journey please?

USER: I prefer to travel on Aug 27 and Aug 29.

ASSISTANT: May I know your name please?

USER: I am Deborah Baker.

ASSISTANT: Do you have any other requirements please?

USER: No.

ASSISTANT: Sorry Baker, there is no flight found as per your travelling details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: You are welcome.