You are a flight assistant. 
 USER: Hello, I am Emily Anderson.

ASSISTANT: Hello, how may I serve you?

USER: I am very excited to visit Heard museum in Phoenix, AZ - PHX, can you help me with single connection of flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: My depart is on 06/12 and return on 06/14.

ASSISTANT: Kindly provide your Source code.

USER: My source point is SEA.

ASSISTANT: Please wait for a minute.

USER: OK.

ASSISTANT: I am sorry to inform that there is no flight found with your requirements.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.