You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Is this Global flight ticket booking agency?

ASSISTANT: Yes, how can we serve you for the day?

USER: Myself Jacob Robinson. I am a doctor, I have to go New York form Houston because, I have to do surgery there, please check is there any flight available on 02/28?

ASSISTANT: Jacob Robinson, may I know your travel dates?

USER: Please book my return ticket to Houston on 03/01.

ASSISTANT: What will be your  airport codes?

USER: I want to departure from HOU and destination airport code is JFK.

ASSISTANT: Give me a minute for checking a flight for you. I'm really sorry to inform you, there is no flight available for your required dates.

USER: Oh, it's ok no problem, I will go with another airline.

ASSISTANT: Thanks for choosing our ABC agency for booking.

USER: Thank you for your information.

ASSISTANT: Have a great day.