You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Gonzalez.

ASSISTANT: Ruth Gonzalez. How may I assist you?

USER: I want to change my existing reservation due to bad health issues. Can you help me in doing that?

ASSISTANT: Sure, may I have your precious time for a moment?

USER: Sure.

ASSISTANT: May I have your airport codes?

USER: I will fly from LAS to reach EWR.

ASSISTANT: Provide withe the travel dates please.

USER: My travel dates are June 17 and June 19.

ASSISTANT: Give me a moment please.

USER: Sure.

ASSISTANT: Delta airlines with flight 1021 is providing service on your route.

USER: May I know the connection limit?

ASSISTANT: Sure, flight is with the single halt.

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked in the economy class with the cost of 100.

USER: Thank you for helping me.

ASSISTANT:  Thank you for approaching us.