You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know you name?

USER: I am Jessica Martin.

ASSISTANT: How can I serve you today?

USER: I am a doctor, have to treat a patient who is at serious condition.So, please book a flight to LGA. connection limit is one.

ASSISTANT: Ok, Can you please share your travelling dates?

USER: I will start on 03/30. It will be comfortable to travel with a price of 5000. I shall return on 04/01.

ASSISTANT: Let me know your source code?

USER: Source code is DCA.

ASSISTANT: Ok, wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. We have found a flight with 2 connections.

USER: I need single connection, do not proceed to book.

ASSISTANT: Ok, Thanks for contacting us.

USER: Thank You.