You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I want to book a flight ticket to attend an event which is going to held at TX. Can you help me?

ASSISTANT: Sure, could you please help me with your dates of journey?

USER: Apr 26th and 28th are my travelling dates.

ASSISTANT: May I know your source airport code please?

USER: I would like to start from LGA.

ASSISTANT: Are you looking for any other help from my side please?

USER: I need a connecting flight.

ASSISTANT: Ok, wait for a moment please.

USER: Ok.

ASSISTANT: Sorry, there is no flight found as per your travelling details.

USER: No issue.

ASSISTANT: May I know your name please?

USER: Thank you. Shirley Martinez here.

ASSISTANT: Thank you.

USER: Welcome.