You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Dallas, as my doctor prescribed me to go for a change, will you help me with booking a flight ticket?

ASSISTANT: Sure, can you help me with codes of airport?

USER: My codes are from OAK to DFW.

ASSISTANT: Similarly, can you please share the dates too?

USER: My preferable dates are from 06/13 till 06/15.

ASSISTANT: Please be in line for a moment, I will check with availability. There is a direct flight available with AA airlines, shall I book it for you?

USER: I need 1 connection limit, can check flights with 1 connection limit.

ASSISTANT: There is no connected flights available, Sorry for inconvenience.

USER: That's ok.

ASSISTANT: Can I know your good name?

USER: Emma Edwards.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.