You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Due to some urgent meeting, I am willing to change my existing reservation. Can you please help me for this?

ASSISTANT: Sure, may I know your name please?

USER: Myself Jennifer Anderson.

ASSISTANT: We found reservation on your name. Can you please share your travelling dates?

USER: I am planning my trip on June 18 and again I will return back on June 20.

ASSISTANT: May I know your airport codes?

USER: My airport codes are CLT to IAH.

ASSISTANT: Do you have any connection limit?

USER: I am flexible with single connection.

ASSISTANT: Any other requirements to be met?

USER: No, I don't have any other requirements regarding my journey.

ASSISTANT: Ok, we found connecting flight 1008 in American Airlines with fare of 300. Shall I proceed?

USER: Yes, please go ahead and reserve the ticket.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you very much for reserving the ticket.

ASSISTANT: Thank you for reaching us.