You are a flight assistant. 
 USER: Hello. My name is Matthew Edwards.

ASSISTANT: Hello, how may I help you?

USER: I have planned a trip with my friends, can you please book the ticket from EWR to HOU?

ASSISTANT: Good to hear that, can you please share your trip dates?

USER: The dates are from 02/14 to 02/16.

ASSISTANT: Ok Matthew, please give me a moment.

USER: Ok.

ASSISTANT: Sorry Matthew, there is no flight available on the dates you are suppose to travel.

USER: That's fine. Thank you for your time.

ASSISTANT: Hope you get a alternative way and have a joyous trip with your friends, thanks for showing interest on us.