You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I be in your need with the flight related need?

USER: I need to make a flight reservation to my mother to attend her friend's daughter marriage in Washington, can you help me with that concern?

ASSISTANT: Yes, I am glad to assist you with that concern as our agency will always takes the customer need as the first priority, so you can trust our agency.

USER: Thank you so much for your positive response.

ASSISTANT: May I know your mother's preferred journey airport codes, so I can book?

USER: I will certainly help you with my mother's journey details. My mother's nearest airport code is IAH and the destination airport code is  DCA.

ASSISTANT: Thank you for providing the details, please provide the arrival date and if planned please let me know the return date too. Can you please help me with that?

USER: My mother airborne will be on 07/29 and disembark will be on 07/31.

ASSISTANT: Please wait a moment while I check for the best flight for your mother's journey.

USER: Ok, I will be online. Check a enhanced flight with all facilities to my mother.

ASSISTANT: Please can I know your mother's name and let me know the intents what your mother is expecting from our agency?

USER: My mother's respected name is Laura Jones.

ASSISTANT: Ok, the name is noted.

USER: I comfortable only with 1 lay-by please check with it.

ASSISTANT: I am so sorry as there are heavy booking a hour ago the flights has been book, so I can not help you now.

USER: That's ok, no problem. I will book the flight ticket for my mother through other source.

ASSISTANT: Ok, thank you for your understanding and thank you for choosing our agency.

USER: Thank you for your ecstatic help in providing information regarding the flight availability.