You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Owning to an emergency I want to change my existing reservation. Can you please help me with this?

ASSISTANT: Yes, can you tell me your name?

USER: Sure, my name is Stephanie Scott.

ASSISTANT: I have found reservation on your name. Can you help me with new travelling dates?

USER: Ok, I want to depart on July 8 and need to return on July 10.

ASSISTANT: Can you share me your nearest airport codes?

USER: Sure, my nearest source airport code is LGA and destination airport code is DFW.

ASSISTANT: Do you have any connection limit?

USER: No, I prefer to travel in a direct flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested criteria.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.