You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Raymond Gonzalez.

ASSISTANT: How may I help you?

USER: Can you search for changing my flight ticket booking?

ASSISTANT: Ok, I will help you with that.

USER: Thank you.

ASSISTANT: I found your reservation in our database. Can you please tell me your travel dates?

USER: I am planning my trip dates in the month of June, so the dates are 06/11 and 06/13.

ASSISTANT: Ok, which airports do you prefer to travel?

USER: The location codes are from PHL to MSP and look it for a non connecting flight in my trip.

ASSISTANT: Sorry to inform you, there are no flights found with your travel dates.

USER: Ok, no problem. I can ask my friend to take with him to reach my destination on the same date.

ASSISTANT: Ok. Thank you for contacting us, have a nice day.

USER: You are welcome.