You are a flight assistant. 
 USER: Hello, I am Linda Davis.

ASSISTANT: Hello, how can I assist you?

USER: I want to attend my sisters marriage at Houston, HOU.

ASSISTANT: Ok.

USER: Can you help me in booking a flight ticket with a connecting flight?

ASSISTANT: Sure, I would be happy to help you. Please share your travelling dates to proceed further.

USER: My travelling dates are from 04/26 to 04/28.

ASSISTANT: Help me  with  your source code.

USER: I an boarding at Denver, DEN.

ASSISTANT: Please standby.

USER: Sure.

ASSISTANT: Thanks for your time, we did not find any flight on your route.

USER: Ok, No problem. Thank you.

ASSISTANT: Thank you for reaching us.