You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Samuel Turner.

ASSISTANT: How may I help you, Turner?

USER: I love wildlife and would like to take wildlife photography at National Forest, Dallas. Can you help me in booking a ticket?

ASSISTANT: Good to hear, may I know your travel dates please?

USER: I would like to travel on dates 06/04 and 06/06.

ASSISTANT: Can you please provide your airport codes?

USER: My preferred journey airport codes are OAK and DFW respectively.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry to say, no flights have been found on your journey dates.

USER: That's sad to hear, anyways, thank you for the information.

ASSISTANT: Thank you for approaching us.