You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how exactly I can serve you the best today?

USER: I would like to change my flight reservation as I am unwell, please help me.

ASSISTANT: Sure, we are perky to serve you.

USER: Thank you.

ASSISTANT: It will be helpful for me, if you share me your good name?

USER: My name is Raymond Hernandez.

ASSISTANT: Please wait for a while, I will check the reservation list and get back to you.

USER: Sure.

ASSISTANT: Thanks for your time, we found a reservation on your name. Can you share me your new journey dates?

USER: Sounds good. I want depart on Aug 29th and I will return back on Aug 31st.

ASSISTANT: Where you need to catch the flight and land?

USER: I want to travel from BOS to PHL.

ASSISTANT: Is there any class preference for you?

USER: No class preference.

ASSISTANT: Is there any specific timings for you to depart and arrive?

USER: No, I am comfortable with any time.

ASSISTANT: Do you need any way station in your journey?

USER: Yes, I prefer for a single connection flight.

ASSISTANT: Do you have any other preferences to be met?

USER: I prefer for a normal-cost airlines.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, we are happy to inform you that we found United Airlines with one break in your journey. Shall I reserve this for you?

USER: Happy to hear that, please proceed.

ASSISTANT: Your seat has been reserved with 1002 flight number and your seat has been reserved in normal-cost airlines.

USER: Thank you so much.

ASSISTANT: Thank you for approaching us, we hope you are happy with our service.