You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you now?

USER: I am Alexander White, planning to meet my parents on their wedding anniversary day.So, can you reserve a flight ticket from Houston, IAH?

ASSISTANT: Sure, I can make your reservation right now. Can you please share me your travelling dates?

USER: My depart is on 05/19 and return on 05/21.

ASSISTANT: May I know your destination airport code?

USER: Washington, DCA is my landing point.

ASSISTANT: Do you need any other specifications?

USER: Yes, there should be a lay by.

ASSISTANT: There is a flight found with Delta airline of flight number 1011 and fare is 100. Shall I make this reservation for you?

USER: Yes, you can proceed.

ASSISTANT: Your reservation has been done.

USER: Thank you for aiding me.

ASSISTANT: Thanks for opting us, wish you a great journey.